I know I was there when I was closer to that age. Took me a few embarassing nights and painful mornings before I finally figured out there's a big difference between feelin good and bein happy (what it's all about) and stumbling around completly unaware of your surroundings and lacking all basic motor functions while burping on your own vomit, eventually puking til you dry heave all night and all morning, and then not even remembering most of it while you try all day to position your body on the couch so your head doesn't pound as badly. I've also puked in places I shouldn't have and on things I shouldn't have. After awhile I came to the conclusion that none of that is fun. If someone were to take a video of you and show you the next day I'd bet it wouldn't look like you were having that much fun.
Don't get me wrong, I'm still a drinker. But Im past the stage where I crammed as much down my throat as quickly as I could before I had to puke just to be able to recount how much I drank the next day like it should get me some sort of medal. It's actually nice to know how good of a time you're having. Everybody grows up eventually I guess.
BTW IVe never believed all the bullshit wive's tales about mixing things or having one thing before the other. If you puked it's because you exceeded your limits, regardless of whether that was 8 beers, 5 shots, or some combination thereof.