Dear T,

I'm nervous what you'll think when you'll read my email. I'm afraid you'll think I make a problem out of everything. That I'm a burden to you. I'm afraid you'll regret asking me if I want to continue therapy with you at your new workplace.
You haven't done anything to make me think this. It's me. I'm afraid I'm a burden to anyone. Even to someone who's getting paid to listen to me. After all, you're only human.