Sucking it up and drinking for the first time, what should I get?

Context: So im 21 and the legal drinking age where I am is 18, I have a date tomorrow night and she wants to go drinking, I have a pretty traumatic relationship with drinking because I thought I was going to become an alcoholic if I ever tasted a drop of it lmao, recently I want to get over that so I agreed to go drinking.

The problem: I have very plain taste buds I only drink water or strawberry milkshakes or tea or hot chocolate so is there anything that tastes similar and is easy for beginners?