1. If the price of the coin is steadily rising, then a pullback is just a small rest, a good opportunity for us to get in. There is no coin that keeps flying; a pullback is like a spring storing energy, allowing it to bounce higher later.
2. If the price of the coin is clearly dropping, then a rebound is an opportunity to escape. Once the trend turns bad, it might take a long time to rise again, possibly half a year. Don't hold on stubbornly, and don't waste time.
3. For short-term fluctuations, look at the fundamentals; for long-term movements, it relies on fundamentals. Don't be blinded by small gains in front of you; think long-term.
4. The bottoms you guess are often not the real bottoms; they may just be halfway down the mountain. The real bottom depends on sentiment and funds. Don't blindly try to catch the bottom; if you try ten times, you'll likely get stuck nine times.
5. Don't always think about making money from good news; real market trends are all about expectations. Many retail investors love to listen to news and speculate on coins, but most of the time, what you hear is just what others have already heard. Even if it's true news, by the time you find out, the market may have already ended.