I agree with Electic. You'll do fine. I also did my first tour this year and understand your nervousness. I didn’t sleep a wink the night before. I was sure I’d make a fool of myself. I found Tylenol PM and ear plugs helped me to get a full night's sleep on the tour as well as a good air bed. My tour was a camping trip and I hadn’t done any tent camping in about 25 years!
You will be so proud of yourself when you reach your destination, and we at TE will be too! Have fun!