I don't know if you still look at my reddit account, but if you do, a part of me actually wants you to read this so you have a fighting chance in life.
You need to grow up. You need to learn what it means to be a functioning adult and do that. You can't go through life just neglecting your responsibilities and complaining about it, no one else cares about that stuff and complaining gets you nothing but annoyance from the people you complain to. You need to pay your bills, sort out your living situation, and make decisions on these things (as opposed to just waiting until you don't have a choice anymore).
You also need to look at what you want in life. Do you want to go to law school? Do you want to go into politics? You could do so much. You're so smart, but it's like you're just morally opposed to picking something and working towards it. And to be honest, you're not the level of smart where you CAN do nothing and get away with it. Not many people are, but that doesn't change anything. Also,even if you're on the fence about what you want, you're aware that studying harder and getting better grades will help regardless, so why don't you do that? Actually try, dude, don't just put in a half assed effort then whine that the prof is marking you unfairly. They're not. You're just too entitled to see that.
On that note, you're also under the impression that you're entitled to people's friendship and/or love. It doesn't work like that. You can't ignore your friends for long periods of time for no good reason, then be upset when they don't instantly make time for you once you decide you're no longer too busy. Things like video games shouldn't take priority over your best friends, nor should they have taken priority over quality time with me. You need to work on your interpersonal skills, and you need to do it fast because you're in great danger of those friends of yours picking me over you. And you can't even blame them, they're just giving you exactly what you always give them. Which is nothing. So make an effort before it's too late with them like it is with me.
It really is too late with me, by the way. I'm sure you don't want to hear it but hopefully knowing for sure will help you move on. We just fell apart, that wasn't a lie, but that fact also doesn't exist in a vacuum. All of the above were contributing factors. In the end, I just couldn't find any affection left inside myself because it had all been negated by frustration and anger and hurt. You're not a bad guy, but you didn't appreciate what we had until it was gone, and the fact that you continued to make me a low priority even after I warned you that I wasn't feeling great about "us" sort of sealed the deal and convinced me that you didn't care as much as you thought you did. I think you liked the idea of a girlfriend more than you ever liked me. You put girls on a pedestal so I should've seen it coming, but hopefully you'll work towards changing that in the future and maybe you'll have more success the next time around.
This turned out really long but whatever. Oh and one last thing, be nice to your parents. You treat them like shit and it's really hard to watch. Give your mom a call sometime, it would make her happy and she's not the devil just because your personalities clash sometimes.