Help me please its ergent?

on Monday, im going to be an MC at a rave playing along side a DJ! how can i get prepared and not be scared on stage, because when i was younger i tried to go on stage but i bottled it! also what is the best way to keep ravers happy, i know i should follow my haert really, but all i need is a few tips! and last but not least, Lyrics. i cant seem to come up with lyrics that go with the beat and sound catchy, thanks for your help :)