To deal with these periods:
1. **Do not panic:** Avoid panic and making emotional decisions. Stay calm and remember that sharp price fluctuations are part of the nature of digital markets.
2. **Rational Evaluation:** Evaluate the situation objectively and rely on technical and fundamental analysis to determine whether there are fundamental reasons for the decline and whether the market is overvalued.
3. **Maintaining the goal:** Remember your long-term investment goals and do not make hasty decisions that contradict those goals.