Do not sell your coin when looking at your coin soaring!
Many people have done this, the general psychological tendency of the market. Many stories share the same plot, and each time you see a coin A rising drastically, you start to sell your Coin B and immediately jump into Coin A. The psychological effect is called The FOMO is a normal fear of human psychology but is really dangerous in the Crypto market.
The most important thing is do not panic sell your coin when bitcoin price drop. We should hold our coins until the market look better.