Most dating advice fails for the same reason a lot of advice isn't helpful. It ignores the role that good luck can play.
You have to set yourself to be successful the best way you can: learn how to tell a story in an engaging way, travel and do interesting things that most people don't get to, build your body to be as attractive and healthy as you can make it, and the rest comes down to being at the right place at the right time and being in the right mood.
Failure is part of the process and anyone promising you a pain-free solution is selling you something. All these redpill and female dating strategy types are just out to make bank. Men and women tend to over think things and get frustrated.
Men are simple. Men want their sacrifices recognized and appreciated, they want to be apologized to with respect when they are wronged, want to be communicated with clearly, not in hints and implications and they want to be able to enjoy peace and quiet when they ain't in the mood to talk about everything.
Women want safety, security, and someone whom they can show off and impress other people with. They seek a man who is decisive, knows what he wants and has clear boundaries around what he will and won't tolerate and clear goals for himself.
When you understand these things it simplifies the game