Congratulations on your first gig! The no-confidence thing is pretty common - all the great riffs you play in rehearsal seem to disappear from your mind when you hit the stage. Like everything else, that too improves with experience.
Like 99% of the people in this forum, I play for one reason only - to perform. I don't play for me, I play for everyone else...my band mates, the audience, our producer, the cd-buying public. My enjoyment comes from giving them what they want (musically, that is).
Plus, playing gigs is the best way to earn money for MORE GEAR!!!
