Tereza O'Neill

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she/her
Dipl CBT, Dipl Integrative Counselling, BSc Psych, MBACP

About me

I specialise in offering therapy for anxiety in its many forms: overthinking, uncontrollable worry, rumination, health anxiety, social anxiety, intrusive thoughts, OCD. Anxiety often feels less like a single problem and more like a constant background noise that makes decisions harder, sleep poorer and everyday moments more tiring. It can leave you exhausted, isolated, and unsure how to cope. If your mind feels busy, stuck or on high alert, you don’t have to manage it alone.

I offer a warm, calm and non-judgemental space where we’ll make sense of what’s happening and find practical, manageable ways to interrupt worry. My approach is integrative and CBT-informed: using evidence-based tools when you want practical strategies, and exploring patterns, meaning and emotional blocks when that feels right. I work in a down-to-earth, collaborative way — providing structure when you want it and gentle curiosity when you need it.

My focus is on steady, practical support so you can notice small but meaningful changes — clearer thinking, kinder self-talk and more confidence in everyday decisions.

You might be considering counselling for a variety of reasons:

  • You’re going through a tough patch and want to talk things through.
  • You’re stuck on a decision and need support to explore your options.
  • You’re ready to make changes but finding it harder than expected.
  • You’re reflecting on past experiences and want to understand them better so you can move forward.
  • You’re feeling stuck in cycles of overthinking, constant worry, or low mood.

If you’re looking for a therapist who listens, offers practical tools and respects your pace, please do get in touch.

Training, qualifications & experience

I bring a blend of professional training and lived experience to my counselling practice. I hold a Diploma in Cognitive Behavioural Therapy (CBT), a Diploma in Integrative Therapeutic Counselling, a BSc in Psychology, and a Certificate in Online & Telephone Counselling. This combination allows me to tailor sessions to your individual needs and preferences.

I’ve supported clients through charities and private agencies, offering counselling and assessments online, by phone, and in person. My time volunteering with the Samaritans deepened my appreciation for the value of having space to talk — and be heard.

Before retraining as a counsellor, I worked in office environments, particularly legal settings, and understand the pressures of deadlines, commuting, and maintaining a work-life balance.

Originally from New Zealand, I’ve travelled widely and now call London home. I understand the emotional layers of emigration — from homesickness and culture shock to identity shifts and long-distance relationships — and bring that insight into my work with clients.

As a registered member of the British Association for Counselling and Psychotherapy (BACP), I adhere to their ethical standards. I’m fully insured and trained in online and telephone counselling, ensuring your experience is safe, professional, and comfortable. My aim is to offer a space that feels steady, respectful, and genuinely supportive.

Member organisations

BACP
British Association for Counselling & Psychotherapy (BACP)

BACP is one of the UK’s leading professional bodies for counselling and psychotherapy with around 60,000 members. The Association has several different categories of membership, including Student Member, Individual Member, Registered Member MBACP, Registered Accredited Member MBACP (Accred) and Senior Registered Accredited Member MBACP (Snr Acccred). Registered and accredited members are listed on the BACP Register, which shows that they have demonstrated BACP’s recommended standards for training, proficiency and ethical practice. The BACP Register was the first register of psychological therapists to be accredited by the Professional Standards Authority (PSA). Accredited and senior accredited membership are voluntary categories for members who choose to undertake a rigorous application and assessment process to demonstrate additional standards around practice, training and supervision. Individual members will have completed an appropriate counselling or psychotherapy course and started to practise, but they won’t appear on the BACP Register until they've demonstrated that they meet the standards for registration. Student members are still in the process of completing their training. All members are bound by the BACP Ethical Framework and a Professional Conduct Procedure.

Accredited register membership

British Association for Counselling & Psychotherapy
Accredited Register Scheme

The Accredited Register Scheme was set up in 2013 by the Department of Health (DoH) as a way to recognise organisations that hold voluntary registers which meet certain standards. These standards are set by the Professional Standards Authority (PSA).

This therapist has indicated that they belong to an Accredited Register.

British Association for Counselling & Psychotherapy

Areas of counselling I deal with

Therapies offered

Fees

£60.00 per session

Concessions offered for

  • Trainee counsellors

Additional information

You’re welcome to book a free 20-minute telephone call. It’s a first step where we can talk about what’s led you to consider counselling, what you might need, and how I work. You can ask any questions and take your time deciding whether it feels like a good fit — there’s no expectation or commitment.

I offer a concessionary rate of £40 to trainee counsellors.

When I work

Mon Tue Wed Thu Fri Sat Sun
Early morning
Morning
Early afternoon
Late afternoon
Evening

Further information

Sessions are 60 minutes long and typically take place weekly. I don’t currently offer face-to-face counselling, instead offering online or telephone sessions.

You’re welcome to choose open-ended counselling, continuing for as long as you find it helpful, or we can agree on a specific time frame and review as we go along.

If you decide to book a first full session, we’ll take time to explore what’s brought you to counselling and what you’d like to get out of it. This initial session may feel a little more focused, as we begin to understand your situation and consider what support might be most helpful. There’s no formal assessment or paperwork — just space to talk, reflect, and begin shaping a way forward together.

Some clients arrive with a clear goal in mind, while others are still working out what they need. Either way is welcome. You don’t need to prepare anything in advance, and there’s no expectation to share more than feels comfortable.

If you’d find it helpful to talk through whether we’re a good fit, or if you’d like to book an initial session, please feel free to get in touch.

London, Greater London, SE5

Type of session

Online
Phone

Types of client

Young adults (18-24)
Adults (25-64)
Older Adults (65+)

Key details

DBS check

In England and Wales, the Disclosure and Barring Service (DBS, formerly known as CRB) carry out criminal records checks for individuals working with vulnerable groups, such as children. To find out more, visit gov.uk , or contact this professional directly

Tereza O'Neill
Tereza O'Neill