What the hell am I even suposed to do with my life?

21male here and I already feel like I'm burnt out to shit. Ever since I've graduated it's been painfully lonely for me. I moved to Europe after grad (Lived most of my life in Brazil before) and mostly lost touch and drifted apart with all my friends from there. I'm currently still living with my parents, whom I grateful to have (Also I'm an onlychild), but that feeling of simply just hanging out and laughing with my buddies is gone. Doesn't help that I'm very socially awkward and shy so forming new friends feels like a herculean effort to me. I sometimes still stalk my old friends social accounts and seeing them all happy and smiling together with thier significant others, celebrating thier college achievements while I dropped out from college twice. I part of me wants to reach out and ask if we could game together like the good times back in school, but another part feels like I'm not even worthy of thier attention anymore, they're all living good lives and I'm happy for them and all, but it still doesn't quell the lonliness.
I don't know what the hell am I suposed to anymore and it fucking scares me sometimes. My parents think that all it takes is for me to get a decent paying job and that will make me feel complete but it won't change the fact that I am living for nothing, for no one.