How to cope with the feeling of being unwanted

I’m 22 atm and I’ve only been in relationship once when I was 18. I had realized that have been a whole five years. I really struggle socially and it’s hard to me even make friends. I’m really bad at dating and understanding the signs and unspoken rules and I really feel unwanted and repulsive because of that. Does anyone have similar experiences? How do you manage that feelings and how to meet someone as an adult neurodivergent person?