Diana Ostap
Registered Psychotherapist, Registered Psychotherapist (Qualifying)
Do you feel overwhelmed by your emotions or disconnected from your sense of self? Past experiences, mood changes, or ongoing self-doubt can leave you feeling exhausted and unsure if things will ever feel different. These struggles can impact your daily life and relationships, making it hard to find calm or clarity. But something in you is ready for change. You want to feel grounded, confident, and supported. I can help you begin that process and feel like yourself again.
Client Focus
Session Format: Individual sessions.
Age Specialty: Adult, Young Adult
Treatment Approach
- Acceptance & Commitment Therapy (ACT) Helps people accept difficult thoughts and feelings instead of fighting them, while committing to actions that reflect their values. It blends mindfulness with practical behavior strategies.
- Cognitive Behavioral Therapy (CBT) One of the most widely used approaches, CBT helps people identify unhelpful thoughts and replace them with healthier patterns. It is effective for anxiety, depression, and many other concerns.
- Dialectical Behavior Therapy (DBT) Combines CBT with mindfulness to help regulate emotions, tolerate stress, and build stronger relationships. Originally designed for borderline personality disorder, it’s now used more broadly.
- Emotionally Focused Therapy (EFT) Focuses on strengthening emotional bonds in couples or families. It helps people identify negative cycles and create more secure connections.
- Existential / Humanistic Therapy Encourages people to explore meaning, freedom, and authenticity in their lives. It focuses on personal growth and living in alignment with one’s values.
- Experiential Therapy Involves hands-on activities to bring emotions into the present moment. It helps clients process feelings more deeply than through conversation alone.
- Internal Family Systems (IFS) Helps clients heal by working with different ‘parts’ of themselves, like inner critics or wounded children. It fosters harmony within the self.
- Mindfulness-Based Cognitive Therapy (MBCT) Combines mindfulness practices with CBT to prevent depression relapse. It helps people notice thoughts without judgment and respond more calmly.
- Narrative Therapy Encourages people to view problems as separate from themselves and reframe their life story. It helps build resilience and self-identity.
- Psychodynamic Therapy Explores unconscious thoughts and patterns that influence current behavior. It builds insight into how the past impacts the present.
- Somatic Therapy Helps clients notice how emotions are stored in the body. It uses breath, movement, and awareness for healing trauma and stress.
Fees & Insurance
Fees
- Average Session Fee 120
- Affordable sliding scale therapy: apply if you may be eligible.
- Access to mental health care should not depend on insurance coverage. I offer affordable therapy options, including sliding scale fees, to support individuals who may be facing financial barriers. These options are designed to ensure clients can receive thoughtful, high-quality care in a way that feels sustainable and supportive.
- Accepts Insurance
Education & Credentials
Diana Ostap Registered Psychotherapist (Qualifying)
- Female
- License # 21021
- Licensed in Ontario
- Practicing Since 2026
Diana Ostap Practice Details
Therapy Sessions
- Available In-Person in Hamilton, ON L9A 4W5 and Oakville, ON L6H 5R7
- Available Online for residents of Ontario
- Online Therapy Details: I provide online therapy across Ontario!
I specialize in working with teens, adults, and couples navigating anxiety, depression, trauma, and neurodivergent experiences. My approach is warm, collaborative, and grounded in evidence-based practices. Clients often describe me as kind, knowledgeable, and validating because therapy should be a place where you feel safe, understood, and supported. You don’t have to carry these challenges alone. Together, we will build emotional balance, self-understanding, and resilience. A life of calm and connection is possible. Reach out to schedule a free 15-minute consultation. I look forward to connecting with you.