many people experience situations like yours, usually panic sell. You can make this an experience and in the future you can do an analysis to find out when to release or when to hold so that you can predict whether it is in the long or short term. good luck in the future
People to go for panic sell because they are not confident about their own technical signals. When we are good at generating trading signals through technical analysis and we are very much confident about accuracy of our signal then we never need to get panic. Moreover, people who are buying signal from other are easily getting panic because they are not aware of anything about market fluctuations.
So, understanding about the market fluctuations will help anyone to stay calm which is more important to avoid panic selling.