You'll learn. In College I blacked out 3-4 nights a week. As I got older and further away from the college life my drinking got under control and now it's been quite some time since I blacked out. I also only drink 1-2 nights a week now compared to the 5-6 nights I'd drink back in the day. Hangovers also get exponentially worse as you get into your late 20's so that helps stop you from going too crazy. If I drink too much now I will literally have a 24 hour hangover, it is awful.
My wife on the other hand genuinely doesn't enjoy alcohol and has never blacked out and only drinks once every few months. Some people just don't enjoy booze and there's nothing wrong with it.
Yup, don't force yourself to like drinking. I love drinking, and when out with friends, we drink quite a bit, but I never shame friends who don't want to drink while out.
That said, if you want to continue drinking, moderate yourself. Some people can drink a lot, but that doesn't mean you have to. You might never have a high tolerance. That's okay. No one is going to think less of you as a result. People will, however, think differently of you, if you're that guy always puking and blacking out.
So, drink slowly, eat plenty, and when you think "eh, I'm not THAT drunk, let's have another drink", take a break.
Never passed out drinking. I know it when im at my limit. Drinking lots of water/gatorade before sleeping helps alot.
Yeah, this is a great way to avoid a hangover. Drink tons of water before going to bed. You'll still feel groggy in the morning, but your headache won't be so bad.