Numerous studies have shown that women on average desire sex less than men. Anyone can confirm this by asking 100 women to have sex. What this means is that most women are not interested in sex. Or have a very low interest. Ie they have low sociosexuality.

A small minority of women have high sociosexuality and are open to sex in the same way that most men are.

Men's strategy of pursuing low sociosexuality women for sex is highly ineffective and this can be seen daily. Men are not getting rejected for sex because they are short, bald, poor, or have bad personalities. Women simply aren't interested.

This also means that no amount of self-improvement or effort will change the outcome. Not more than marginally at best.

It would be far more effective for men to share women who are high sociosexuality or get a substitute such a sex dolls.

TL:DR

Women are not gonna fuck you. Stop trying and buy a doll.