I came across a real experience shared by a rebar trader, which is particularly thought-provoking. He used to know a friend who made rebar and had a solid foundation in cryptocurrency trading analysis. He also knew how important stop loss was and would fill in the stop loss price in advance every time he opened a position. However, as the market approached the stop loss level, he couldn't control his mentality. Watching the floating losses gradually expand, I began to have fantasies and couldn't help but move the stop loss line downwards time and time again. As the market continues to weaken, stop losses continue to be relaxed. By the time they can no longer bear to cut losses and leave, the losses have far exceeded the initial plan. It's not that I don't understand risk control, but I understand the principles and can't do it in practice. Over and over again, the account gradually became depleted. At the end of the day, it's all about the fear of admitting mistakes, where even a small loss can drag on and become an unbearable loss. At the moment when the market approaches the stop loss, countless self comforting voices will always emerge from the bottom of my heart: we are about to rebound, the fundamentals are not bad, and I don't want to give up after holding on for a while. Set the stop loss level before opening, and then do not look through it again. When the price is reached, the system will automatically close the position. Stop loss and exit must be painful at the moment, but every pain is a profound lesson. This trader has developed a way to restrain human nature: only using pre embedded conditional stop loss orders and never changing them after placing an order. But this account is actually easy to calculate. It is normal for two or three false breakthroughs to sweep losses in ten market trends. However, if one allows oneself not to stop losses, eight out of ten will become deeper and deeper, and one extreme market trend can severely damage the principal. Many people are conflicted and always encounter a reversal of the stop loss market just after scanning, feeling that it's a pity to go empty handed. Stop loss is never just about losing money, but about spending money to buy the qualification to stay in the market and preserve the principal in order to have a chance for the next transaction. Don't blame the market or the market for trading losses. If you can't control the continuous downward stop loss, the root always lies in yourself. Looking at those traders who set stop losses but make arbitrary changes, I feel regretful that despite having the ability to analyze the market, they end up losing to themselves who cannot control their emotions.