|>>|| No. 28862
This might be anecdotal, but for what it's worth, my sexual relationships basically come down to meeting people through the following channels:
a) mutual friends
b) work colleagues
c) themed get-togethers intended for people to mingle (i.e. meetups, clubs)
d) online apps (I've had the most success with Bumble, where girls confirm their interest first)
So those are some more concrete suggestions. But as other lads have pointed out, it sounds like your problems may run a bit deeper. You can gradually overcome social isolation with a few positive changes here and there. For example, finding a new (or any) job automatically puts you into contact with people, moving to a new area will give you new neighbours and a reason to attend local meetups.
I think you should try focusing on the problems you can control and generally leading a good fulfilling life, meeting people will come naturally from that. Don't let it knock your confidence that you haven't had sex -- I'm sure you have your legitimate reasons and struggles.
Many people end up with absolutely dysfunctional sex lives despite early "success". Think about the people who have sexless relationships or marriages, those who are cheating, developing risky/dangerous sex behaviours, or hide their true sexual orientations. Not having sex until a late age is certainly not the worst thing that can happen in someone's sexual development