I do use drugs, but don't go to T under the influence. For me, it's a matter of respecting her and respecting the T environment.

I'm a really anxious person too and, while it's taken me nearly a year and a half (and two medications) to start getting words out in T, my T has worked with me to help me overcome my fears around vulnerability and opening up.

Also, I don't know if you are, but if you're working with trauma stuff, difficulty speaking is not uncommon. IMO it'd be pretty important to work through it with proven effective therapeutic approaches.