Tiarna Chesser

Tiarna is a registered psychologist with experience across forensic and community mental health settings. She works primarily with adults and is passionate about providing compassionate, collaborative, and trauma-informed care. Tiarna understands that difficult experiences can affect how people feel, think, relate to others, and navigate everyday life. She aims to create a warm, supportive, and non-judgemental space where clients feel heard and empowered to explore their experiences at a pace that feels right for them.

Her approach is tailored to each client’s individual needs, goals, and strengths. Tiarna draws on evidence-based therapies including Cognitive Behavioural Therapy (CBT), Cognitive Processing Therapy (CPT), Motivational Interviewing (MI), Internal Family Systems (IFS), and DBT-informed skills building. She supports clients to better understand their experiences, manage difficult emotions, strengthen coping skills, and work towards meaningful and sustainable change.

Tiarna has also completed training in perinatal non-directive counselling and can provide non-directive counselling to people experiencing pregnancy-related concerns or issues in accordance with the requirements for Medicare Benefits Schedule (MBS) items 81000 and 81005.

Alongside her individual clinical work, Tiarna has experience facilitating therapeutic groups and developing structured, skills-based programs that support emotional regulation, psychological well-being, and personal growth.

Appropriate referrals include:

Trauma-related concerns, pregnancy-related concerns, perinatal emotional wellbeing, depression, anxiety, emotional regulation difficulties, stress and burnout, life transitions, interpersonal challenges, low self-esteem, alcohol and other drug concerns, gambling-related harm, and general mental health and well-being.

PSYCHOLOGIST & GROUPS COORDINATOR


More about me…

How would you describe your style or approach in sessions?
I’d say I’m warm, collaborative, and approachable. I try to create a space where people feel heard and supported, but I’m also not afraid to gently challenge things when it’s helpful. There’s usually a bit of humour along the way too—therapy can be serious, but it doesn’t always have to feel heavy.

Can you share a therapeutic approach or strategy you often use, and what you like about it?
I often draw from Internal Family Systems and parts therapy. I really value how it helps people explore the different “parts” of themselves—like the inner critic, the people-pleaser, or the protector—with curiosity and compassion. Instead of trying to get rid of these parts, we learn to understand them and build a better relationship with them. It’s a powerful way to help people feel more integrated, self-aware, and in touch with their strengths.

What’s something outside of work that brings you joy or helps you recharge?

My Great Dane, Pam!

If you could have any superpower to help your clients, what would it be and why?
I’d love to give people the ability to see themselves the way someone who truly cares about them does—kind, capable, and full of potential. So often we’re our own harshest critics, and just a glimpse of that outside perspective can be enough to shift everything.