I got very badly drunk when I was 15 - two bottles of sherry in an hour! I was very ill indeed for two days and still light-headed on the third! I think I must have come close to killing myself. It cured me for life though! I'm 49 now and I've only touched alcohol once since.
That was half a pint of beer about twenty years ago. I didn't finish it all - but I was pi**ed! My head was spinning, I couldn't walk straight - I didn't like it at all. I've never touched a drop since then.