The essence of trading is actually probability. As for probability, no one can achieve a 100% winning rate, so each transaction is a trial and error. Use your own verified system to wait for the entry signal in the market. When it meets your entry signal, you must enter the market decisively. After entering the market, set the stop loss according to the rules. If you are wrong, stop loss decisively, and if you are right, hold firmly. With such repeated and deliberate training, the probability and profit are basically guaranteed.