The biggest enemy of trading is the patience to wait for a clear market trend and excessive trading. A bull market does not end in a day, nor does a bear market. The cryptocurrency market is a place where I have seen people not trade for three years, and when they do, they can profit for three years, as long as you have patience. Wait for the market trend to become clear, find the leading stocks, and hold on until the entire bull market ends. If you do not overtrade, then you can achieve unexpected profits. When the trend comes, respond to it and follow it. When there is no trend, observe and be calm. Excessive trading is also a major enemy of investment. Those who trade on price differences can only earn a little sweet profit but cannot make big money. Let's calculate the transaction fees of excessive trading: current cryptocurrency exchanges charge 0.2% for buying and selling each, so completing a transaction costs 0.4%. If a trader operates once a day, over a year calculated as 365 days, then due to transaction fees, this trader loses 4/1000 * 365 = 140%. You didn't see it wrong; it's 1.4 times. Think about it, Buffett is still striving for 30%, while you are paying 140% in annual transaction fees. Another point that traders often overlook is that the more frequently one enters and exits the market, the more likely they are to change their mind frequently. As the saying goes, more actions lead to more mistakes, fewer actions lead to fewer mistakes, and no action leads to no mistakes. However, excessive trading can also cause you to miss out on significant market movements.