Need to do something radically different to meet someone

I've been on online apps my whole life since i was about 17, due to crippling social anxiety this method stuck. I stayed a loner and avoided serious relationships, i like the full control of knowing who i'm meeting, a bit about them, and pre-discussed dating intentions.

I'm so so awkward and anxious about being approached IRL, even if I found the guy good looking i was overthinking it and rejected them.

I tried joining hobby groups, but guys never approached me in that way and it was mostly just friendly.

I feel like doing something radically different that TERRIFIES me, like going to a club night or bar or something by myself. I really want to break free of my anxieties and go dancing. I don't have good friends who would come along so it'll have to be solo.

Advice needed on all this..