How?

So a little background before I get into the question.

1. I have bipolar disorder as a male.

2. I'm medicated but require a large window for sleep with my work schedule and adherence to a fairly strict schedule

3. I've been trying to utilize online dating since my work schedule doesn't really permit much else.

4. I'm fantastic at making friends, long and short term, at work and outside of it. I have many friends, but leading into the question,

How do I be attractive sexually? I'm far, far from the biggest man down below the belt. I try to play on humor, it gets me friends. I play on advice which has been proven to work. I play on smarts and looks while trying to remain confident but not arrogant. I have been single for 5 years. The last time I was close I got flaked on 4 times a row and it's been a month since I've talked to that particular lady.

I focus on having fun, I have pictures with me in nice and casual dress, taken by others and selfies. Nice pictures first. I've tried everything I know and it's clearly not sufficient. Every time I initiate (with any girl who I could see even casual friendship with) it ends up the same. Either they become a rare associate or not a friend at all. I don't think I'm unattractive, not overweight, no glaring visual flaws even if there are 2 flaws that I'm aware of. Namely my long term sanity and less than average dick size.

I'm very unsure of how I can even go about pursuing long term relationships, women value stability more than the size of a member. At least for relationships. For casual they value the size, which I'm also lacking in. I've focused on improving what I can, being interesting, being motivating, focusing on improving my life, gaining residual income, focusing on my music and passions. Being me.

Apparently being me for the past 5 years isn't good enough. All I can get are catfish. I'm tired of it. Any tips now that I've aired this info to the mentors and strangers, the experts and noobs alike?