If you have been trading coins for more than three years, you must have acted in this plot: Buy it, increase by 30%, think it can still increase, increase by 100%, start fantasizing that this round will change your life. The result is a correction, and the profit has increased from 100% to 50%. You tell yourself to wash the market normally. Falling again, falling back to cost. At this moment, you suddenly couldn't take it anymore. Without hesitation, you clicked sell, and not long after, it began a new round of rise. You start to doubt life. In fact, what you sell is never coins, what you sell is the pain of 'losing the profits you received'. Many people think they sell because they are afraid of losing money. Actually, it's not. What you are truly afraid of is: having earned before but leaving nothing behind. So when the price returns to near cost, your brain will desperately tell you, "Run, at least don't lose money So, you turned a profitable transaction into an emotional release. Behavioral economics calls this regret aversion. In the market, it has another name: chive thinking. Because the market never cares about your costs. It only cares about the flow of chips. When you sell out of emotions, it's often when most people sell together, and that moment happens to be when big money likes to take chips the most. So don't look at the profit and loss before preparing to sell next time. First of all, ask yourself: If you don't have a position right now, would you buy this position? If the answer is yes. The reason you sell should not be just because it falls back to your cost. The truly mature trading is not about competing with candlesticks, but about competing with one's own emotions. Most people lose money not because they can't buy, but because they always lose to themselves who are in a hurry to press the sell button.