Trading is really hard! When you have a speculative trading system and try to execute it consistently, the test in this process is far more than your own profit and loss, especially when there are all kinds of noise around you, and the temptation of huge profits may be one of the most dangerous enemies to defeat your hard-earned logical beliefs. Because systematic trading is not perfect, we will have consecutive losses, be tortured by random incentives, and encounter unfavorable periods. When you are struggling to get through the difficult period, countless people will suddenly jump out around you and tell you that he is creating endless huge profits... Countless seeds of doubt will be planted in your heart. If they cannot be eliminated, they will sprout and grow, and disperse your unsteady cognition.