In a bull market, you must hold on to your coins, and in a bear market, you must be short. The highest level of trading is shorting, because you can only make the most profit by waiting for a big drop and waiting for corpses to fall everywhere before you enter the warehouse to clean up the mess. Shorting is still very difficult, because you not only have to endure a long period of boring waiting, but also have to endure the fomo mentality after others continue to make money. According to the volatility of ETH, the chance of a 20% drop is still very good to grasp 4-5 times a year.