First author appearance jitters

I have my first author appearance in less than a week. I'll be at the Baltimore Book Festival, doing a panel on ebooks and the changing nature of publishing, a book signing, and a reading. This is of course a dream come true, to be participating in a book festival as an author, but I'm getting more nervous as the days go by. I hate public speaking. You'd think reading from my own work would be easy (don't I know all the words by heart now?), but the thought of standing up in front of a crowd ...