Ask someone out for coffee. Talk about your week. Ask about theirs. Don’t treat the interaction as a pass/fail. Repeat. If you have mutual attraction then nature will play out.
Doing the bare minimum hygiene and the appearance of happiness drastically improves your chances.
Dating is for finding someone you enjoy being around. Sex is a result of growing closer.
Obviously some people have it easier than others but I have peers that just refuse to ask people out for coffee or a lunch. I’m a late millennial if that matters.
Be a decent person and if a love interest doesn’t personally find you attractive they WILL tell their friends. NEVER talk poorly about your previous relationships. Learn a few jokes.
The privatization of love is a real problem but the classic approach isn’t dead.
The whole fake it till you make it thing can be applicable here but therapy is valid and cheaper than you think. You are worthy and deserving of love.