Now that I'm done with the one half of the problem (school) I've gotten back with 2 of my friends but before then I literally just had my twin brother. IDK, I would probably be a sad fuck like you if it wasn't for him. I'm not being degrading, im just admitting my luck.
I'll tell you how I am making more acquaintances though, who I hope become friends.
1. I signed up at a gym, find someone your age to workout with. For guys, it easy as faulk.
2.I found online a massive group of people who play Ultimate Frisbee from ages 19 -20's, So go look online site like "Meetup". Make friends through activities.
I know you want that friend who you can just hang out and it doesn't have to be an EVENT to be around, but I've learned since I'm like you in regards to all the partying, your going to have to find people at Events before they can become better friends.
I'm 25 and I've learned that your friend count drops with your age. Good luck my gay friend @Czar.