This method must learn from your own mistakes. But, there are several ways to learn without losing or losing a lot. Just learn Forex trading and try it in a demo for 1 or 2 years. You also consider demos as real accounts. Maybe the theory can apply direct investment, so avoid it. And you are right. the best way to learn Forex is to trade Forex. but, there is no need to trade on a real account for a beginner. They must start trading on a demo account first. but they have to practice the number of demo trades as real numbers. I mean seriously trading on a demo account.