Starting Today - Very Nervous!

I'm very nervous. I start psychotherapy today. I know I need it. I have way too much to deal with on my own. I have really bad social anxiety without all the other crap in my life and it is going to be very hard for me to even walk into that office today. I don't even know where to begin. Hopefully I get a good therapist who can guide me along. We will see.... I am freaking out.