After some thought, instead of messing around every day, it's better to find a few promising cryptocurrencies for long-term holding. Take Snowball, Butterfly, Fist, and Virus as examples. I initially invested 50k in Snowball, but I sold it during the first wave of the market because I couldn't hold on. Looking back now, I really regret it. This is a typical result of overtrading and frequent buying and selling. The market is so volatile that instead of chasing highs and selling lows, it's better to choose good targets and hold patiently. Often, this approach yields better results.