What dry goods to share?

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?

Fund management has always been a headache for me. May I ask you guys, how can I do a good job of position control?

Why can you see the general direction right, but make a bad point in the transaction, and lose money instead?

A handful of bitter tears, I have been trading for five years, and I still lose money, what should I do?