After 7 years of trading cryptocurrencies, I've summarized the following ten key points:

1. If your capital is not very large, for example, within 200,000, catching a primary uptrend once a year is enough. Never be fully invested at all times.

2. A person can never earn wealth beyond their knowledge. First, practice with a simulated account to develop your true mindset and courage. You can fail an unlimited number of times in a simulated account, but in real trading, one failure might be everything for you, and it could even lead you to stay away from the market forever.

3. When encountering significant positive news, if you don't sell on the day it occurs, remember to sell on the next day's opening high. Positive news often turns into negative sentiment once it is realized.

4. When facing major holidays, reduce your positions or even go to cash a week in advance. Historically, markets tend to drop during holidays.

5. The medium to long-term strategy is to keep enough cash, sell on the rise, buy back on the dip, and continuously roll over your positions for optimal strategy.

6. Short-term trading mainly looks at trading volume and patterns. Engage with active patterns that have significant ups and downs; avoid those that are inactive.

7. If the decline slows down, the rebound will also be slow; if the decline accelerates, the rebound will be quick.

8. If you make a wrong purchase, acknowledge it, promptly cut losses, and protect your principal; this is the foundation for survival in the market.

9. For short-term trading, always look at the 15-minute candlestick charts. You can find better buy and sell points using the KDJ indicator.

10. There are countless techniques and methods for trading cryptocurrencies, but mastering a few well is sufficient; do not be greedy!