As a cryptocurrency investor, I have made several common mistakes. The most serious one is chasing prices; I impulsively buy when the price goes up and panic sell when it goes down, resulting in frequent losses. Another mistake is excessive leverage; when market fluctuations occur, it can easily lead to liquidation. Blindly believing in "insider information" is also a major trap; I once bought altcoins based on someone else's advice and ended up losing everything. Investing in cryptocurrency requires maintaining rationality, proper risk control, avoiding greed, and not believing in so-called "guaranteed profits."