Others are involuntarily celibate; perhaps they can't find or attract suitable mates. This problem can often be solved by learning and practicing social skills.

What ought one do when the problem is not solved by social skills?

I seem to have a tendency to feel extremely inadequate about any skill at which i am not noticeably better than everyone I know about. Due to this quirk of my psychology, I spent a significant portion of my life believing myself to have horrendous social skills. And, for a long time, I attributed my social and sexual failings to that perceived lack of social skill, despite a gradually growing mass of evidence in favor of my social skills being adequate.

(relatively) Recent evidence and experience has now finished falsifying the premise that my social skills are not viable.

Unfortunately, having (a lack of) social skills ruled out as a cause of the problem leaves me, seemingly, without any more low-hanging fruit to pursue. And when even the woman who literally wrote the sequence on self-awareness tells me that she doesn't know why her interest in dating me suddenly evaporated, I begin to... worry, and that feeling of helplessness starts showing up.

(And this doesn't even touch the non-trivial problem of meeting suitable mates, which is obviously a prerequisite to attracting anyone.)