How're you doing today? Did you drink plenty of water? I always drink a big glass of water before bed, it usually prevents hangovers. I'm still against you drinking at your age. Your brain is still developing. But it sounds like you're already a veteran.
I waited until I was 23 because I was still trying to live up to my parents expectations. They are fundamentalist Christians. Too many bad memories to go down that road, but I was a late bloomer, to put it mildly. I drank too much from age 23-27, now I'm practically dry. My liver and other organs needed a break and I don't drink when I'm depressed...not very much anyway.
You take care of yourself.