I know exactly what you mean. My T appt is tomorrow too.
I sent my T an email over the weekend with a topic I need to talk about. I am freaking out, because it is something I've been keeping from him, and now I know he knows. I want to cancel, I want to quit, I want to do anything other then go in there and talk about it. But that was a deal we made since I can't ever talk, that I would send an email each week with some things on my mind and we could address them in session.
I'll be your pocket rider if you'll be mine