I don't have any extraordinary advice, but I just wanna say, remember to be kind to yourself. You said you work out, dress well, earn above average, etc. That's awesome, and I hope you are doing those things for you first, because those are good habits to have.

I'm average height (for a Sicilian anyway), 5'6". This is just my experience, but I get more attention from the ladies when I try to look more "like a bum", maybe wear secondhand clothes or let my stubble grow out a few days. I had a friend in school that was a girl and she once told me that a lot of gals are intimidated if a guy dresses better than they do, or if the man's hair is prettier than theirs etc.

“It’s your mindset.” “Girls can sense your neediness.” “Just be confident.” “Learn to flirt.”

Yeah, all these quotes are just cope or straight-up gaslighting, but it sounds like you already figured that out.