Exercising releases endorphins. That's why you hit the gym. That feeling of accomplishment and the post work out buzz.

I don't know you but from your responses I feel that alienation and isolation. I know what it's like to feel "what's the point of socialising, no one truly understands me and I don't give a fuk about their mundane university/work/insert generic small talk topic". How do I know this is learned behavior and not a fundamental part of my personality? Because, and this is going to sound crazy, I was actually legitimately happy at one point in my life. I was actually a " social butterfly" so to speak, could meet anyone and make conversation for hours on end. The hardest part was always breaking the ice but once it was gone I legitimately enjoyed their company and they mine. Then I fell into horrible horrible depression that nearly made me end my life. I came out of it, but I realised I was.. Different. I could no longer talk to people for hours on end, suddenly I found I didn't like talking to people. I could no longer form genuine human connection. I can also fake confidence, but its not the same as truly being confident in your self and who you are. And people notice. My only friends are the good ones I made before I "changed". Now I feel like you. Alone. I have 2 close friends, and I love them like brothers, but even they don't and never will truly understand me. But you need to stay positive man. Work on improving yourself. Cause honestly it sounds like you're carrying around a lot of self loathing and your reluctance to try anything is also exacerbating the problem. I'm not going to give you generic advice like "get out there and just meet people man!" Cause I know that's a load of shit when you know that you'll maybe make convo for 2 minutes about generic stuff and then you never really speak again. But you should never quit trying to improve your self. And yes, going to the gym fucking SUCKS. It really does. I don't enjoy the workout part one bit. But just stay committed for like 2 months (properly committed) and I promise you you will begin to feel more positive. You will have energy and the will to get out there and do things. Giving up is the worst thing you can do. And change your attitude. It's hard to feel positive about shit I know, but when you outright dismiss any and all suggestion for self improvement as a waste of time, all you're really doing is stomping your feet and saying your content with things remaining the way they are. And you really don't sound like you are. I've been there dude. I know how fucking lonely and miserable it is, and especially when you're an extrovert who's forgotten how to interact with humans properly (me). I'm still depressed FYI, not like the rest of these "normies". Heck, I'm probably the worst person to be giving you advice, because I'm still miserable if I'm being entirely honest. But I haven't given up, and neither should you. If you've already written off life, you're not alive. You're simply waiting to die.