I think I just got used to it. I was lucky that I inherented a small flat, although in bad condition and location. I score some freelance gigs time to time to keep myself alive. I have tried online communities or friends so to speak but I don't really get it how it's done. I didn't have a problem in real life.
I read HN always every night before I fall asleep. In 2008 or so my show HN made it to first page. I was very happy that say. Genuine happiness. I might have lacked being a human now.
Take up an “extreme” sport. Skiing, SCUBA diving, mountaineering, surfing, windsurfing, paragliding. Become a de facto member of your chosen activity’s local scene.
Or just find a girl, ???, propagate your bloodline into the future.
Like, whatever, man. It’s over when they’re packing the dirt in your grave.
Volunteering to help with for some in-person activity can provide that essential social connection.
Also, consider talking to a professional. They evaluate situations like the one you describe all the time.
Also, if I may be so presumptuous as to offer a suggestion: try contacting someone from earlier in your life. Many times, people are lost in their own world, their worries and problems and life just happens as it always does. However, they are very likely to be happy to suddenly hear from an old friend. I have been on both sides of this and it was ultimately a good experience. In one case, I also happened to have contacted someone at an opportune moment and saved them from self harm.
Again, a very happy birthday to you and I hope that, this year, you find joy in life.
Can't say the same for any link you might follow though.