In secondary trading, we often want too much, but we lose more. It is easiest to make money by trend trading. It is also easy to find the bottom of the market cycle. It is also easy to find the absolute top of the market cycle. However, in the face of fluctuating prices, human nature makes us want to catch every high and low point in the middle, and we develop the habit of doing T. If T is right, we are happy, and if T is wrong, we are disappointed. If we do T too much, we will lose our way and begin to feel disgusted. The disgusting emotion causes traders to lose their rationality and make wrong judgments and operations. This is also the core point that everyone recognizes that it is difficult to make money in the secondary market. We probably encounter similar situations every year and feel disgusted. The more frequent the transactions, the higher the incidence rate. The trading market is originally drawn by the main force for us traders to see, and we choose to follow. We are weak and strong. The strong thing is that the money is in our hands, and we can choose to attack at any time. It is up to us whether we are cut or not. In order to improve the fault tolerance rate, we can only slowly extend the trading cycle. Knowing the misunderstandings, we must find ways to avoid the frequency of misunderstandings.