Sometimes you just have to face up to the cold hard reality that something is not working for you. How do come to that point where A. This is actually true. B. You know you have put the effort in and C. The results that you need or want are just not there.
Pride, contrary to the popularity of that word these days, is a sin. Why? Precisely for this reason. Pride will prevent you from seeing the obvious. You can wallow in self-destructive behavior backing a losing choice for years due to nothing more than pride. Self defeating pride.
Can you dig deep and realize that you are, gulp, wrong?