Rosie. Go to nightclubs, have fun, dance, have a drink or two, and enjoy yourself. As one poster said, if you don’t do anything. If you tried to avoid anyplace where something sinful might happen, you’d never leave your home. (And even there, don’t turn on the computer and start wandering in places you shouldn’t be.)
Having tended bar for many years in my youth, I offer you this. If you like beer, order it in a bottle and drink it in a glass you pour it into. If the cap is one the bottle when it arrives, all the better. Or, drink “virgin” bloody Mary’s or screwdrivers, or any other mixed drink. And if that isn’t to your liking, tip the bartender five or ten and tell him what you are drinking and not to put any alcohol in it. Mixed drinks like a Mai Tai, pina colada, strawberry daiquiri etc are often served that way. In fact, many bartenders, when they encounter ladies drinking such things, short shot the second, and probably don’t put much alcohol, if any in the subsequent ones. Just a few ideas to stay safe. And as I think someone says, never drink something that someone you don’t really trust gives to you.