Thanks everyone for your advice. I never even considered a psychologist.
Everything you've all said has been valuable and noted.
I don't really think I need to see a psychiatrist because, as was mentioned, they deal with the medical aspect. I took myself off meds a couple of moths ago cos they weren't helping and I was having a great deal of side effects.
I saw my T today, and laid all my cards on the table. Told her exactly what I thought about her and her methods. I'm pretty sure she took it all in.
She spoke briefly about me seeing a sexual assault counsellor to try and get some closure for past issues. She's not sure if I can though, because I'm in the DBT program, she is going to look into it.
I've kind of decided already that I'll go see a psychologist anyway. If it's a no no, I just won't tell her.