don't let them scare you, not everyone is a sociopathic rapist who slips girls roofies....
Have fun. I'm not a clubbing guy, but the times I've been the girls never failed to have fun. Most of the time they get away with not having to buy themselves any drinks, in exchange for some flirting then a quick brushoff. 🙂
Make sure you drink at least 1 or 2 glasses of water before you go to sleep. Laugh if you want, but a little applesauce in the morning when you wake up to go pee, will coat your stomach well. I've woken up feeling crappy, had some applesauce and some water, slept for a few more hours and woke up great...