You can succeed if nobody else believes it, but you will never succeed if you don't believe in yourself.
The US no longer does decisions. It can neither stop the drug traffic nor legalize it. It can neither win wars nor abandon them, neither make money nor stop spending it, neither stop immigration nor assimilate the immigrants. Washington can beat its thumb with a hammer, yes, and notice that it hurts, but it can't stop beating its thumb. That would take a decision, and Washington doesn't do decisions.