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Meet Gemma

Gemma Gilewski – Experienced CBT Therapist in Swansea

Gemma Gilewski, BSc(Hons), MSc, PGCert, PGDipCBT, BABCP

  • BScHons Psychology (University of Hertfordshire)

  • MSc Forensic Mental Health (University of Birmingham)

  • PGCert Evidenced Based Psychological Treatment (University of Reading)

  • PGDip Cognitive Behavioural Therapy (Royal Holloway University London)

  • BABCP Accredited by the British Association for Behavioural and Cognitive Psychotherapies 

About Me

I’m a fully accredited Cognitive Behaviour Therapist (CBT) with the British Association of Behavioural and Cognitive Psychotherapies (BABCP). With over 15 years of experience in mental health within the NHS, I’ve developed a deep understanding of the complexities of the human mind and the many challenges people face when it comes to mental health.

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My passion for helping others, combined with a personal connection to mental health, has been the driving force behind my career. I believe in the power of empathy, education, and empowerment in therapy. My approach is centred around creating a supportive, non-judgmental environment where individuals feel safe to explore their thoughts, emotions, and behaviours.

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Clinical Experience

I began my career as a Psychological Wellbeing Practitioner, where I developed skills in group therapy and guided self-help based on CBT principles. I then trained as a High Intensity CBT Therapist, supporting adults with complex issues such as depression, anxiety disorders, and the psychological impact of long-term conditions like COPD and diabetes. This allowed me to combine my personal experience with long-term health conditions with my therapeutic expertise.

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Alongside adult work, I spent time in Child and Adolescent Mental Health Services (CAMHS), supporting children, young people, and families. This experience gave me insight into developmental differences, family dynamics, and how to tailor CBT effectively across age groups.

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Several years ago, I made the decision to focus fully on private practice. This allows me to offer therapy in a flexible, supportive, and personalised way, giving each individual or family the time and attention they need. My experience across NHS and CAMHS settings continues to inform how I work today, helping me adapt CBT thoughtfully to each person’s unique situation.

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Professional Contributions

In addition to clinical practice, I have contributed widely to the CBT profession:

  • Teaching and mentoring future CBT therapists, including lecturing at Cardiff University, tutoring and supervising students on the CBT Postgraduate Certificate and Diploma courses, and lecturing at the University of South Wales.

  • Private supervision for practising CBT therapists.

  • Editorial work for the Journal of Psychology and Behavioral Therapy, staying current with the latest research and contributing to the field’s development.

  • Active involvement in the South and West Wales BABCP Branch as an elected committee member, supporting initiatives to promote CBT locally.

 

These experiences ensure my practice is informed by both hands-on clinical work and wider professional developments.​​

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My Approach to CBT

I provide collaborative, structured, and practical CBT, tailored to the individual or family I am working with. I explain concepts clearly, using everyday language, and adapt therapy to meet real-life needs. Sessions are focused and purposeful, designed to support meaningful and manageable change.

At the CBT Practice, I believe the success of therapy comes from trust, respect, and a safe, welcoming environment. I strive to make every session as comfortable and beneficial as possible, whether you’re a child, young person, or adult.

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Working Together

Choosing a CBT therapist is an important decision. My aim is to combine professional expertise, extensive clinical experience, and a human approach, so clients feel confident, understood, and supported. If you’d like to ask questions or explore whether working together might be right for you, you are very welcome to get in touch.

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Click below to find out more about how therapy works for adults or for children and families.

Gemma Gilewski CBT therapist Swansea
We are BABCP registered Cognitive Behaviour Therapists (CBT)
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