1. Most people are mean, but they're OBVIOUSLY not cool like PS Forumites are and I can guarantee you that none of us would ever dare laugh at you. Any sort of performance takes a lot of guts, and that effort ALONE is worth commending. Sing your heart out, girl.
2. Why wouldn't the con come to you? o_o;
3. Practice makes perfect. While it's easy to get discouraged from one little slip-up, you've just got to keep trying. Work hard and the end result will be fantastic, I promise!
Good Luck. ♥