Mike,
Congrats! I wouldn't worry about any mistakes. It just shows that you were playing live and not playing behind a midi machine or lip-synching to some background music.

I have lots of music but for new songs I go through my Fake Books. In 2 of my books I have over 2000 songs and they are not too bad to lug around for the music.

That is great news!

Enjoy,
- Brian