Key idea: talking about internal parts in psychology does not mean having multiple personalities. It is a way of describing something ordinary: different needs, impulses and emotions can pull in different directions within the same person. One part wants to move forward, another fears the cost, another criticises, another avoids and another may simply be exhausted.
In therapy I often hear: “I know what I should do, but I can't do it”, “part of me wants to move forward and another part freezes”, or “I get angry with myself because I keep doing the same thing”. When this happens, I do not automatically think in terms of weak willpower. Often there is inner conflict.
From the outside we may look contradictory. Inside, several needs may be trying to coexist. One part wants change; another anticipates failure, rejection or loss; another wants to stay in control; another needs rest. Parts language can help organise that experience without turning it into a character flaw.
It is also important to be precise: “internal parts” is a broad way of talking about inner states, voices, impulses or positions. Not every psychological approach that uses this language is IFS. Later we will explain what Internal Family Systems specifically adds.
When wanting to change is not enough
Many people understand exactly what is happening and still repeat the same pattern. Knowing does not always equal being able to act. We can know that something is hurting us while also experiencing change as costly or threatening.
This can appear in many situations: wanting to set a boundary and then staying silent; wanting to begin therapy but postponing the appointment; wanting to rest and still forcing yourself onwards; wanting to leave a harmful relationship while remaining attached to hope; wanting to submit an application and avoiding it for weeks.
The explanation is not always an “old wound”. Previous learning or difficult experiences may matter. Sometimes the explanation is much more immediate: tiredness, uncertainty, fear of getting it wrong, lack of resources, external pressure, genuine ambivalence or the fact that change has real costs.
Before calling a blockage laziness or self-sabotage, it is worth asking: what makes this change difficult for this particular person?
What are internal parts?
When I use this term broadly, I mean different states, impulses, inner voices or ways of reacting that can appear in the same person depending on the situation. This is a common human experience.
In one day you may notice a determined part, a part afraid of making a mistake, a critical part, a pleasing part, an avoidant part and another part that simply needs to stop. Experiencing different inner positions is not, by itself, pathological.
Having internal parts is not the same as having dissociative identity disorder or a personality disorder. If there are significant memory gaps, intense disconnection, marked experiences of unreality, major identity changes or serious interference with everyday functioning, a specific professional assessment is appropriate; parts language alone is not enough.
Why might I resist change?
Resistance is not always the enemy. It can appear when change involves uncertainty, exposure, possible failure, conflict, loss of control or leaving behind something that also provided a degree of safety.
Sometimes it looks like procrastination. Sometimes it looks like perfectionism, endless doubt, control, people-pleasing or avoidance. Yet the same behaviour can serve different functions. Delaying a task may reflect fear of failure, exhaustion, boredom, executive difficulties, lack of clarity or simply a poorly chosen priority.
A good psychological formulation therefore does not assume the explanation. It develops hypotheses and checks them.
Example: changing jobs
Laura wants to send applications, but every time she opens a vacancy she ends up tidying the house or scrolling on her phone. It could look like poor discipline. When she explores the pattern, several factors appear: she is worried she will not be good enough, fears disappointing her family if she loses stability and has also been exhausted for months. The blockage does not have one single cause. Understanding the different functions helps determine what each problem actually needs.
If postponing important tasks is a central part of the problem, our guide to procrastination and protective parts goes into more detail.
Resistance as possible protection
For some people, avoidance does seem to be trying to protect them from an experience they anticipate as painful: criticism, shame, exposure, rejection, conflict or loss of control.
Sometimes that expectation is linked with earlier experiences. At other times it comes from the current situation. It is important not to turn every blockage into a trauma narrative that has not been established.
A useful question can be: “What does this reaction fear would happen if I took the step?”. The answer does not need to be profound. It may simply be “I'll get it wrong”, “I won't be able to undo it”, or “I'll have one more responsibility when I'm already exhausted”.
Understanding is not the same as obeying. A reaction may have a protective function without having the best strategy. The aim is to understand enough to have more freedom in how you respond.
Anxiety and inner conflict
Anxiety can intensify the sense of internal tug-of-war. One part wants to act; another predicts danger. Checking, doubt, hypervigilance, avoidance or a strong need for certainty can follow.
When the system is highly activated, “I feel danger” can start to feel like “there is danger”. Therapy can help distinguish actual threat, tolerable uncertainty and strategies that bring short-term relief while maintaining the problem.
The National Institute of Mental Health and the NHS describe worry, tension, fear and avoidance among common forms of anxiety. If anxiety occupies a large part of your life, see our anxiety treatment page.
Depression and feeling emotionally stuck
With depression, inner conflict may feel less like an active struggle and more like shutting down: low energy, difficulty deciding, loss of interest, hopelessness and self-criticism.
In that state, “I want to, but I can't” is not a moral failure. Depression can affect energy, initiative and the ability to organise action. If an inner voice adds “you should be able to do this”, the suffering often increases.
When low mood is persistent or functioning has dropped, appropriate assessment matters. You can read more about depression and our guide to depression treatment.
The inner critic: when protection turns into attack
An inner critic can sound like “don't be ridiculous”, “you've failed again”, “if you relax everything will fall apart”, or “nobody will take you seriously”. It may try to prevent mistakes, rejection or humiliation by applying pressure.
The problem is that a strategy intended to improve performance can increase shame, anxiety and avoidance. Rather than motivating, it can reduce the capacity to act.
In therapy, arguing with that voice is not always the best first move. It can be more informative to understand what it fears would happen if it stopped pushing, before developing a less punitive way of correcting or motivating yourself.
If this feels familiar, see our full article on the inner critic in IFS. Research has also examined links between self-criticism and psychotherapy outcomes and the role of self-compassion in psychological interventions.
A simple way to understand your internal parts
This map is not designed to classify you. It is a way of observing what appears, when it appears and what it may be trying to solve.
| Inner experience | How it may appear | What may be useful to explore |
|---|---|---|
| The part that wants to move forward | Wanting to change, ask for help, set boundaries or make decisions. | What it needs, what goal it is pursuing and what change is realistic. |
| The fearful part | Doubt, anticipation, freezing or fear of mistakes and rejection. | What risk it perceives and how much of that risk belongs to the present. |
| The critical part | Pressure, guilt, comparison or shame. | What it believes would happen if it stopped pushing. |
| The avoidant part | Putting things off, distracting yourself, switching off or avoiding conversations. | What discomfort it reduces in the short term and what cost follows. |
| The pleasing part | Saying yes when you mean no or avoiding conflict. | What relationship or sense of safety it is trying to preserve. |
| The exhausted part | Apathy, tiredness or feeling unable to keep going. | Whether recovery, support, clinical assessment or practical changes in workload are needed. |
How does this relate to IFS?
Internal Family Systems (IFS) explicitly uses parts language, but it adds a specific theory and therapeutic method. IFS uses concepts including protective parts, vulnerable parts, blending and unblending, polarisation and Self.
So internal parts and IFS are not synonyms. You can use parts language to describe an inner conflict without doing IFS. Structured IFS work follows concepts and processes that belong specifically to the model.
The research literature on IFS is growing, but the IFS Institute currently describes the scientific evidence as emerging and still limited compared with treatments that have larger evidence bases for particular diagnoses. IFS is therefore best discussed with interest and clinical caution rather than as a universal explanation.
If you want to understand the model from the beginning, the best next step is our guide to IFS therapy: what Internal Family Systems is and how it works.
When two parts pull in opposite directions
IFS uses the term polarisation when two protective parts become locked in opposition. One part may demand productivity while another shuts down. One wants closeness while another wants distance. The more one side pushes, the more the other may resist.
This is particularly relevant to the experience of “I want to change, but I get stuck”. Our article on polarised parts explains how to recognise that tug-of-war without turning it into a battle in which one side has to disappear.
How are internal parts worked with in therapy?
The first step is usually to describe the pattern accurately. What happens before the blockage? What does the body do? Which thoughts appear? What happens next? What are the consequences?
Then the function of the reaction can be explored. IFS may be useful in some cases. In others, emotional regulation, behavioural activation, exposure, cognitive work, interpersonal skills, self-compassion or a combination of approaches may fit better.
The intervention should follow the actual problem rather than forcing every difficulty into one model. Anxiety, depression, trauma, ADHD, relationship difficulties and other factors may all require different elements of treatment.
Brief exercise: before calling a reaction “self-sabotage”
- Describe one recent situation in a sentence.
- Write down what you wanted to do.
- Write down what you actually did.
- Ask: “What was this reaction trying to avoid or achieve?”
- Ask: “What did it cost in the short and longer term?”
- Think of an alternative that is 10% more useful, not a perfect solution.
If the situation activates intense trauma memories, dissociation, self-harm or safety concerns, do not use it as a self-help exercise; seek professional support.
Affirmative therapy and parts that learnt to hide
In affirmative therapy, parts language can be useful when someone has learnt to monitor themselves, please others, hide aspects of themselves or anticipate judgement.
One part may want to be seen while another experiences that as risky. Understanding that conflict does not mean pathologising identity; it also requires attention to social context, experiences of invalidation and current safety.
The aim is not to push someone towards a particular way of living, but to help them hear different needs and make decisions with greater safety, autonomy and coherence.
Fictional example: when asking for help feels frightening too
Someone has been thinking about starting therapy for months. They know they need support, but every time they open the booking page they close it again: “it's not that bad”, “I should be able to manage this”, “I'd be embarrassed to say it out loud”.
We can call this avoidance. We can also explore what sits underneath: one part wants help; another fears opening too much; another criticises the need for support; another fears being vulnerable with a stranger.
The intervention does not necessarily begin by attacking resistance. It may begin by understanding what would make asking for help feel sufficiently safe.
When to seek professional help
Consider professional support when inner conflict stops being occasional and begins to limit decisions, relationships, rest, work, study or self-care for weeks or months.
It is also important when there is increasing isolation, a clear drop in functioning, intense hopelessness or a sense that the inner struggle occupies much of the day.
If there are thoughts of death, self-harm, violence, dangerous substance use or an inability to stay safe, professional and safety assessment takes priority. If you are in Spain and there is an immediate life-threatening emergency, call 112. For suicidal thoughts or risk, the Spanish Ministry of Health 024 line is free, confidential and available 24 hours.
If you want to explore parts language further
These articles develop the concepts most closely related to the experience of “one part wants to change and another gets stuck”:
Psychological support in Palmones and the Campo de Gibraltar
Ocnos Psychology Clinic is in Palmones, Los Barrios, and supports people across the Campo de Gibraltar, including Algeciras, San Roque, La Línea, Sotogrande and Gibraltar. You can also visit our local pages for a psychologist in Palmones, Algeciras, La Línea de la Concepción, Gibraltar and Sotogrande.
Rocío Rodríguez Boza is a General Health Psychologist registered with COPAO under AN 13748. You can view her professional profile, COPAO verification and DocFav profile.
Frequently asked questions about internal parts
Does having internal parts mean having multiple personalities?
No. Here, internal parts describes states, impulses or emotional positions that can coexist within one person. This is not, by itself, dissociative identity disorder or multiple personalities.
Why does part of me want to change while another part resists?
Because change can have benefits and costs at the same time. A reaction may anticipate failure, rejection, loss of control, effort or uncertainty. Previous experiences may matter, but sometimes the explanation is in the present. It is better to explore than assume.
Is resistance to change self-sabotage?
It may feel that way, but “self-sabotage” often describes the result rather than explaining the function. Avoidance or delay may reduce distress in the short term while making the problem larger later. Understanding what the behaviour achieves can help build alternatives.
How are internal parts related to anxiety?
Anxiety can increase anticipation, doubt, control and avoidance. One part wants to act while another perceives danger. If this pattern limits your life, anxiety itself may need treatment alongside parts language.
Can depression make me feel stuck?
Yes. Depression can affect energy, motivation, concentration, hope and decision-making. It is not helpful to interpret this automatically as lack of willpower.
Are internal parts and IFS the same thing?
Not exactly. Internal parts can be a general way of describing inner states or positions. IFS is a specific psychotherapy model with its own concepts, including protectors, exiles, blending, Self and polarisation.
How are internal parts worked with in therapy?
It depends on the problem. Therapy may explore the function of a reaction and, where appropriate, integrate IFS, emotional regulation, CBT, exposure, behavioural activation, self-compassion or other tools. Treatment should not reduce every difficulty to one model.
When should I seek professional help?
When feeling stuck or inner conflict is persistent, limits your functioning or is accompanied by anxiety, depression, isolation, self-harm, thoughts of death, problematic substance use or other risks. You do not need to wait until you reach crisis point before asking for help.
Do you recognise this sense of inner struggle?
If part of you wants to move forward while another gets stuck, therapy can explore what is happening without reducing it to laziness, weak willpower or one single explanation. The aim is to understand the pattern and build more realistic next steps.
Rocío Rodríguez Boza provides her clinical sessions in Spanish. This English article is offered as psychoeducation and information.
Sources and further reading
- Schwartz, R. C. & Sweezy, M. Internal Family Systems Therapy, 2nd ed. Guilford Press.
- Anderson, F. G., Sweezy, M. & Schwartz, R. C. Internal Family Systems Skills Training Manual. PESI.
- IFS Institute — official glossary of terms.
- IFS Institute — current overview of the IFS evidence base.
- NIMH — Generalised Anxiety Disorder.
- NHS — anxiety, fear and panic.
- Review of self-criticism and psychotherapy outcomes.
This article is psychoeducational and does not replace an individual psychological, psychiatric or medical assessment. “Parts” is used descriptively here and, where the article specifically discusses IFS, with the meaning given to it within the Internal Family Systems model.
