Gold would retrace before rally again

In trading, how to solve the problem of being hit by the market back and forth with stop loss? What is the basis for the solution?

If you want to make money in trading, what principles do you need to understand?

How do you view the theory that review is useless?

What are the stupid behaviors in trading?

Let me tell you one thing, unplanned trading is the most stupid trading behavior. Follow your own ideas, enter and exit the market casually, and don’t do a good job of stop profit and stop loss. This should be the most mindless behavior!Have you seen any other stupid trading behaviors? Either your own or someone else's! Welcome to add, as a standard for our transactions!

Why do really successful traders never share their methods or strategies?