When you say therapist, do you mean psychologist or psychiatrist?
I'll assume psychologist.
I'd be honest and tell them you aren't sure the best way to navigate which will meet their style and yours. If you get a chance to explain a bit of what you just wrote here, it would be a good starting point.
When I start with someone new I usually let them talk or ask me questions for most of the first session. They usually say a bit about their background and their expertise. They ask about my diagnoses and history with other therapists. I don't get into specifics of personal issues but I might say something like "I have ASD2 and ADHD. I've had two strokes. I'm here for therapy because of Complex Trauma which is from longterm SA and exploitation. I've had a hard time in therapy because I'm neurodivergent and CBT doesn't work for me. It feels like gaslighting. I also have Alexithymia which means I have a really hard time putting my feelings into words that therapists understand. I tend to infodump because I can't be succinct with feelings and it takes me a very long time to process what I'm feeling or what the therapist tells me. I prefer really direct instruction and homework rather than "feel good" nonsense or visualisation activities. I can't visualise anything because I have Aphantasia. I have a lot to unpack starting in childhood but it's usually better if we go through major themes like: ______ ______ _______ _______ (mine are generally self-advocacy, communication, trust, trauma triggers, avoidance, etc.)"
They usually ask what's the most important thing I want to address or where I want to start. I always say guilt and shame from trauma.
When I've gone to psychiatrists it's always on referral so they already know why I'm there, but they usually start by doing a formal mental health evaluation to see if anything's changed or where my needs are in their estimation.
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I never give you my number, I only give you my situation.
Beatles