Oh god yeah you get more fucked, but for a first timer, severely unrecommended. It's really nothing like being drunk, for one, you don't really feel violent at all.
Unfortunately the only way you can find out your limit is to actually spew...make sure you've got plenty of fluids e.g WATER at hand. Fizzy drinks might taste fantastic but they'll do nothing to make you feel better, if anything it'll take you closer to spewing.
Best food of course is meat. Lots of meat. If you can get your hands on a burger or twelve you'll be friggin ecstatic trust me. Feels great =D
And last of all, as it's gonna be your first time, do some research, look for what could happen on the net, read some forums, find out what others experiences are. And when you do do it, HAVE SOMEONE WITH YOU!!! Just in case.