I've been there, really. They can make money by operating and show it to you, but you can't make money by operating. If you are patient and determined to do it, you will have to grope for it for at least a year to make money. Because they are all experts, you just came in as a rookie, just like playing chess. No matter how the chess master teaches you to play chess, you still can't reach his level. You still have to study step by step, and it will take two or three years to achieve something. The reason is the same!