Preferably in real life and without religion or alcohol.
I’m still trying to figure this out for myself.
You just need to put yourself around people as much as possible.
If your circumstances are that it isn’t possible, you shouldn’t beat yourself up about it. You perhaps could then make it your goal to relocate or put yourself in a position where you can be around people.
What kind of stuff are you into?
Recently I’ve been getting into making digital art and reading books. Though I haven’t done much of either yet. These are new hobbies that I just discovered my enjoyment of and I’m just getting into them for the first time.