Not being able to follow the rules in trading is not a weakness of will. Many people think, "I have weak mental strength," but that is not the essence. As long as you are human, emotions will inevitably move, and they will "interfere." And that interference undermines trading. In this series, - Why can't people follow the rules - Why do they crumble even when they are winning - Why can't they say "stop" will be explained from the perspective of "structure" the reasons. Not patience or grit, but a systematic approach to stabilizing trading with a "non-crumbling" mechanism is organized in this series. If you have repeatedly made the same mistakes in trading, this is especially for you to read.