Colleen

Ms Colleen Sullivan

Counseling Psychologist

“I am a registered organisational and counselling psychologist with over 25 years, working individuals, couples and organisations.”

About Me

With over 25 years as a registered organisational and Counseling psychologist, I offer a steady, experienced presence. I guide individuals, couples, and organisations through their unique challenges. We work together to understand complexities and build practical strategies. Our sessions aim to foster healthier relationships and personal well-being. My extensive experience means I can adapt to your specific needs, helping you find clarity.

Approach

My long experience shapes a pragmatic, paced approach that balances careful listening with practical steps you can try between sessions. In Sydney or online, in English, sessions are structured and collaborative — focused on one or two goals, paced to suit your energy and responsibilities. We track patterns, introduce short skills practice and brief assessments when helpful, and review what changes in daily life so progress is measurable. People juggling chronic illness, relationship strain or workplace stress often find this steady, practical way useful.
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Basic Information

In-person & Online

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Services

Services Offered:

  • Psych & Diagnostic Assessment

    Formal psychological testing to identify conditions, understand cognitive and emotional functioning, and guide treatment planning.

  • Clinical Supervision

    Professional oversight and reflective practice for clinical practitioners, ensuring quality of care and supporting ongoing development.

  • Coaching

    A goal-oriented practice focused on identifying objectives, overcoming obstacles, and taking action, centred on the present and future rather than past difficulties.

  • Community Programme

    Group-based mental health initiatives offered within the community, such as workshops, support groups, or outreach services.

  • Mindfulness

    The practice of paying deliberate attention to the present moment without judgement, used to reduce stress and increase awareness of automatic reactions.

    Learn more about Mindfulness
  • Online Therapy

    Therapy sessions conducted over video call, phone, or secure messaging, using the same professional methods delivered remotely.

    Learn more about Online Therapy
  • Pain Management

    Psychological approaches to chronic pain that address the emotional, cognitive, and behavioural dimensions of living with persistent pain.

  • EMDR

    Eye Movement Desensitisation and Reprocessing, a therapy that uses guided eye movements to help the brain process and integrate traumatic memories.

    Learn more about EMDR
  • Individual Therapy

    One-on-one therapy sessions between a client and a therapist, focused on that person's specific concerns and goals.

    Learn more about Individual Therapy
  • Training

    Professional development programmes for mental health practitioners, including workshops, courses, and continuing education.

Works With:

  • Couples
  • Individuals
  • Organisations

Area of Expertise

Scope of Practice:

  • Anxiety

    Persistent worry, nervousness, or fear that is disproportionate to the situation and interferes with daily functioning.

    Learn more about Anxiety
  • Chronic Illness

    A long-term health condition (e.g., diabetes, autoimmune disease, chronic pain) that persists over time and affects physical, emotional, and social well-being.

    Learn more about Chronic Illness
  • Mood Disorder

    A category of mental health conditions, including depression and bipolar disorder, in which a person's emotional state is significantly and persistently disrupted.

    Learn more about Mood Disorder
  • Divorce Counseling

    Counselling for individuals or couples going through separation or divorce, addressing the emotional, practical, and relational dimensions.

  • Stress / Burnout

    The body and mind's response to prolonged or excessive demands. When sustained, it can lead to emotional exhaustion, detachment, and reduced functioning (burnout).

    Learn more about Stress / Burnout
  • Personal Development

    The ongoing process of self-awareness, self-improvement, and reaching one's potential, pursued not because something is wrong but to live more fully.

  • PTSD

    Post-Traumatic Stress Disorder, a condition that develops after a traumatic event, causing flashbacks, nightmares, hypervigilance, and emotional numbness.

    Learn more about PTSD
  • Relationship Issues

    Difficulties in romantic relationships, including communication problems, trust breakdowns, conflict patterns, or uncertainty about the relationship's future.

    Learn more about Relationship Issues
  • Trauma

    The lasting psychological impact of deeply distressing events, such as violence, abuse, accidents, or disasters, that overwhelm a person's ability to cope.

    Learn more about Trauma

Professional Title:

  • Counseling Psychologist

    A psychologist who helps people with everyday life challenges (relationships, work stress, adjustment) as well as mental health conditions.

Service Areas

Colleen Sullivan

In-person & Online

Wahroonga

Sydney, New South Wales

Australia

Wahroonga, Sydney, Australia