1. The timing of opening a position is wrong. Although the judgment of the trend was correct, it encountered several major adjustments after opening the position, and at the same time, there were also cases of stop loss and exit due to various reasons. If the trend is correct and you use stop loss to exit, it will inevitably cause damage to the funds in the account, which will also affect the final profit situation. 2. Fund allocation problem. After opening a position for the first time, if the trend moves in an unfavorable direction, whether to stop the loss or continue to add positions to spread the cost is a question that investors must quickly solve. If you choose to continue to add positions, you must make a plan for the quantity and interval price of adding positions again. Otherwise, once the prices for adding positions are too dense, causing positions to rapidly expand within a narrow price range, the account's risk tolerance will be greatly reduced. 3. Psychological reasons. The continued increase in positions after losses is due to the combination of investors' stubbornness and luck. Because they are stubborn in their original views, they will not accept the fact that it is currently in the adjustment stage, so they choose to increase positions against the trend; and because of luck, they think that the price will move in a favorable direction after adding positions, so that the original positions will also You can unwind and even make a profit.