i don’t like drinking

long story a little bit shorter, i’m still in my teen years and i started drinking way to early and made a lot of mistakes that affected me badly, not to mention all the times i’ve embarrassed myself, and my girlfriends birthday is coming up and she wants to get a lot of people together and drink, i’m anti social as it is and i get along with people but can’t keep close friend, and drinking around people i don’t know/don’t get along with gives me more anxiety from just drinking itself, what should i do? i’m thinking about going and just having a couple drinks and leaving it at that.