"I feel singled out."
That's on you. Get some sober time and that self-pity goes away. Ask me how I know.
If you want to make connections with people, have you tried being a support to others? I haven't started threads on here, other than AA "Thought for the day," threads.
I have made 20,000 plus posts, though. I don't feel un-supported. What do you expect from typing out a bunch of posts that are frankly pretty prickly? Are you in a, "Class of __________," thread? That's where I spent my early months of sobriety.
Have you thought about volunteering in your neighborhood? I'm sure there is an old or young person who would love your help with something. Why not call a local charity and get plugged in with some face to face helping?