This is probably the most important piece of advice that I ever received, when you begin your journey to try to become a trader you will see that there are thousands of books and each one describes their method as being the best way to make profits in the markets, so how do you know which one is going to make money in the markets? The only way is to understand why a method works and to do that you need to test every single aspect of the methods that you find by yourself and see if they work.