Welcome to the boards, Jenn.
Maybe you're nervous because you do have things to say and you can't yet? or you don't know how?
I put off seeing my T (therapist) for a long time, because I was ok, just a little panicky sometimes. I've been seeing him now for over 2 years. We email each other every day and I always have things to tell him.
I had to get used to him, had to trust him which was, and still is, almost impossible for me. Take your time, keep going to see the one you are most comfortable with - I think the rest will come in time as you learn to trust and open up.
Hope to see more of you.
Mary Alice