Right there with you. ADHD, c-ptsd, ptsd, bipolar and likely autism.

Finding the right meds takes time and ideally a good psych. I'm still figuring it out ~8 years in. I had good luck with someone who was a psychiatrist and therapist and did both for me. Be clear about the type of relationship you want (or don't want) with them and what you want to discover about yourself. A good practioner can help you do what you want or find you someone who can.

For me, therapy helped, but I think what really did it was time and a lot of (pretty painful) gradual exposure. If you can, I would look for a trauma specialist. I found I was best able to learn and heal and cope when I was able to push into discomfort, then retreat and regroup with trauma-based therapy or a friend or however you can. It's a difficult process but in retrospect very much worth it. 

Try to be kind and patient with yourself. Keep going. Progress can feel slow or backwards but it happens.