Wait a minute....
You ditched your ex who was perfect in every way except he has bipolar disorder?
I hope you mean he wasn't looking after himself and his symptoms became unbearable for both of you and your relationship, otherwise you're just verbalizing plain old stigma on a mental health website.
Which needless to say is a huge no no.
I have bipolar btw, I would feel offended and alot of other things if my bf left me just because I have it.
Ditch this "I can't really date idk how, but I'm really good at sex" guy...
If you have nothing in common and zero shared interests, there's nothing to build a relationship on.
It's an exercise in futility.
Since online dating has clearly not worked for you. Try the old school offline approach.
Get out there and meet new people face to face. Network the good old fashioned way.