We welcome, support, and celebrate all of you.

You are the expert in your experience. We are here to help when things feel hard or stuck.

Our Psychotherapy Mission

At All of You Counseling, we offer a welcoming therapeutic space where we invite you to bring your whole self, all of you.  We provide evidence-based mental health therapies, while also acknowledging and strengthening the many areas of wellness we all need to thrive. 

We recognize that while psychotherapy tools are incredibly useful, the first and most important thing we can provide is a sense of safety and respect. 

You are the expert in your experience, and we are here to help when things feel hard or stuck.

A welcoming therapeutic space where we invite you to bring your whole self, all of you

At All of You Counseling, we celebrate the fact that there are so many wonderful ways to see, think, feel, and be in this world.

And when things feel hard, heavy, or too much, we are here to help.

We Specialize In The Following:

Overwhelmed child with autism in kindergarten
teenage boy with bright colored hair looking bored when take a nap on the book.

Our Team

Megan Adair Casteel, LCSW

Manassas and Virtual

Megan (“Ms. MAC” to many of her younger clients) is a Licensed Clinical Social Worker with over 10 years of clinical experience and 8 years of experience as a school social worker.  Megan has worked with students in outpatient therapy, public schools, and public and private day schools (Special Education placements).  She has extensive experience with Special Education, IEPs and 504 Plans.  She has worked primarily with children, adolescents, and young adults, particularly with middle schoolers, though she also works with adults.  She specializes in working with adolescents and young adults with high-functioning autism, and young members of the LGBTQIA+ community.  She also treats depression, anxiety, behavioral challenges, and ADHD/executive functioning deficits.

Megan believes each client is the expert in their lived experience.  She works to create a culturally informed and welcoming space where they can share their journey, challenges, and hopes.  She uses a strengths-based approach, and eclectic treatment modality, to help each client find a personalized path to their goals.  She draws heavily from cognitive-behavioral therapy (CBT), Somatic Experiencing, attachment theory, mindfulness, and self-compassion.  When working with children and adolescents, she collaborates with parents and caregivers where appropriate, while maintaining a confidential space for her young clients.

Megan earned her Master of Social Work degree from Virginia Commonwealth University, and her undergraduate degree from Wellesley College in Wellesley, Massachusetts.  She is more than half-way through completing her multi-year training in Somatic Experiencing.  This trauma-informed treatment method focuses on calming overactive nervous systems and building resiliency.  She is in ongoing training to learn more about the conditions she works with, and how to become an ever-better ally for her clients and community.

In her free time, Megan enjoys spending time with her family and friends, reading, watching movies, and playing board games.  She enjoys meditation in theory, and is working to make more time for it in practice.  She got a late start learning to cook, but she’s really trying to get better at it.

Stephanie Hancock, MSW, Supervisee in Social Work

Manassas and Virtual

Stephanie is currently a Supervisee in Social Work working towards obtaining her LCSW. She earned her undergraduate degree from George Mason University and Master’s Degree in Social Work from Virginia Commonwealth University. She has been practicing in the clinical field for about three years and is currently under the supervision of the company founder, Megan Adair Casteel, LCSW.



Stephanie’s practice focuses on providing support to her clients utilizing dialectical behavior therapy (DBT) and other evidence-based techniques. Through active listening she will work towards empowering you to tackle cognitive distortions, develop positive behavior practices, and manage intense emotions. She presents with experience working with adolescents, families, couples, and adults treating anxiety, depression, aggression, and life-partner struggles/issues.

Tierra Hardin, MSW, Supervisee in Social Work

Manassas and Virtual

Tierra is a Supervisee in Social Work, with experience serving a diverse client population. She holds a Master’s in Social Work from The Catholic University of America and a Bachelor’s in Psychology from Virginia Commonwealth University. She has a broad skill set, including individual and family therapy, crisis intervention, advocacy, and problem-solving. She has particular experience working with adolescents and teens, and treating conditions such as ADHD, depression, anxiety, and behavioral challenges. She uses a person-centered and strengths-based approach in treatment. Through interventions like Cognitive Behavioral Therapy, she seeks to collaborate with her clients to help them find ways to overcome their obstacles.

Maya Rzemyk, MSW, Supervisee in Social Work

Manassas and Virtual

Maya is a Supervisee in Social Work who is dedicated to foster change and help clients reach their individual goals.  She focuses on each client as a unique individual and communicates in a positive and compassionate manner. Maya is motivated to provide a safe environment and facilitates a client-centered approach. She is experienced in working with a diverse population of individuals who desire focus in self-esteem, coping skills with anxiety and depression, working through grief and loss and trauma. 



Maya attended the University of New England for undergraduate and graduate school.  She earned her Master of Social Work after attaining her bachelors in Health Wellness and Occupational Studies, with a minor in psychology. Maya is under clinical supervision and gaining training as she pursues her Licensed Clinical Social Worker (LCSW) certification. She is also a yoga teacher, achieving her 200hour Yoga teacher training in 2018. 

Maya is a Maine native, living in the northern VA area since 2016. She enjoys being active by running, practicing yoga, traveling, walking her dog and staying busy raising a newborn.

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What to expect - Therapy Process

Free Initial
Phone Consultation

At All of You Counseling, we offer a free 30-minute consultation call to prospective clients.

Initial/Diagnostic Session

For adults, your therapist will meet with you to discuss practice and therapy policies, and answer any questions you have. For children and adolescents, depending on their age and development, we might first meet with a parent/guardian, then in a second session meet jointly with the young client and their parent/guardian.

Treatment Goals

Within the first few sessions, your therapist will collaborate with you to develop one or more treatment goals, related to the difficulty(ies) that brought you into therapy. This goal(s) can change later if needed, but it serves as an important starting place for treatment.

Therapy Sessions

Therapy sessions are typically 55 minutes, but may be 45 minutes if you and your therapist agree that this is more appropriate. Many people find that weekly sessions are most helpful, especially when they are first getting to know their therapist. But other schedules are possible, including every other week or monthly when less support is needed, or sometimes twice a week when more support is needed and the therapist has availability.

“We cannot thank Tricia and the Speakout Kids team enough for their dedication in helping my daughter become more verbal and communicative.״

Marion P.

LGBTQ+ Pride Month

PTSD Awareness Month

Immigrant Heritage Month

Gun Violence Awareness Month

Alzheimer's & Brain Awareness Month

Scoliosis Awareness Month

National Cancer Survivors Day (June 6)

International Day of Play (June 11th)

Family Health and Fitness Day (June 12)

Autistic Pride Day (June 18)