The cold hard truth about forex trading is that there is no magical system or formula that will allow you to make insane profits from a tiny amount of money; it is just an inherently flawed concept to believe that.
More broadly, the lesson is that it's hard to take an inherently flawed concept like a large regressive tax cut enacted at a time of low unemployment, rising interest rates, and high debt, and then tack on extra provisions that make it workable.