I'm admitting this here, because no one outside the pub really views it and you all somewhat know me.
I'm currently boozing hard because of a chick. I generally always tried to avoid being with someone and feelings. And i fucked up here, now I'm not sure how to get over it. Should I just try to get with randos or something? Someone adult me, please.
And yet you hit a squat PR! Seriously, though...
In my experience, a period of focus on self-improvement helps, it kind of goes towards the "living well is the best revenge" idea, and it has the opposite effect of self destructive behavior.
It's unfortunate that self medication with alcohol is so effective in the short term (makes us forget our troubles, etc.) because in excess, it can take a person down. I know this well. Best to avoid.
In addition to finding a way to improve yourself, whether that is mentally, emotionally, culturally, physically, spiritually, whatever... It would benefit you to lean on a female friend a bit. Their perspective can help set you straight as you "reset" yourself for an eventual new relationship.
It sounds trite but you go join a book club or a painting class or a cooking class or a yoga class, make some female friends (don't try to date them at this point) and, without unloading the whole at story on them, explain that you're in that post-relationship place and trying to move forward.
Guy friends are great and doing guy stuff is fine, but female friends will do better at helping you get your shit together in a meaningful way.
Good luck man, make sure to think twice about every decision you make for a while, this isn't a good time to be impulsive.