WePow, I'm sorry you're feeling so bad. I don't think anything is WRONG with you. It's logical that being with your brother and his wife, and talking about your past and your parents is going to trigger you. It's okay to want support from your T too.

I like the way Ygrec put it. No one is perfect. No one is completely healed from the past. We just do the best we can, and go on from there. Maybe just accept that tomorrow you'll be able to climb out of the quicksand. Today is maybe a day to distract yourself with something nice for yourself.