What's the worst thing you've done while drunk?

I recently got really drunk (I'm 23) at a party and did things that I am extremely ashamed of now. Basically, I laid on a bed and let a few guys do things to me while other people watched. There was no penetration involved and I didn't touch anyone's penis though. But I feel absolutely disgusting. I don't know what to do. 
I never want to drink again, honestly. Should I feel horrible about myself and gross? I guess I'll just learn from it and never get drunk again...