Also
@D-raw if you have to drink the first time to get up, do your thing, but don't make it a regular thing for a while until you're comfortable. It can turn into a shit show really quick.
Funny story- I went to an open mic on Orange County one time, and a guy got so high before he went up (trying to ease his nerves) that he went on stage and couldn't remember a word of his material. Not a single word. Went up, said hi, never started his bit. Just stood there for (not exaggerating) 3 minutes in complete silence just randomly going "dammit, what was it....." it was one of the most uncomfortable things I have ever watched.