Definitely at least tell T what you wrote -- "There is something that I know I want to do in therapy eventually, but not right now. I have to work up to it."
That will likely help T to pace things.
Maybe make a list of safe things to discuss now?

Still, you can go the funny route "What brings me to counseling?"
a) a Toyota!
b) the 43 bus!
c) my mother!

bad-dum-bum, thank you, I'll be here all week....