Having trouble overcoming the constant rejection

Hello everyone, I'm 36 years old and was diagnosed with autism in adulthood. At 28, I started trying to enter the dating scene, with lots of advice and support from my friends to keep trying. I've been doing cold approaching for eight years with no results, just rejections and being ghosted. It's very difficult for me not to feel worthless.

I take dating coaches, maintain impeccable hygiene (of course), go to the barber regularly, work, buy skincare products, i used a lot of dating apps with no result and often go out alone to bars, parties, social clubs, and work gatherings. I try to socialize with as many people as possible to improve my social skills (not exclusively for dating, but if I see an opportunity, I take it, and I always try to seize the chance). I constantly ask my female friends for advice and do everything they tell me, but it hardly helps.

I'd like to know what I'm doing wrong or what's wrong with me.