In my opinion, in investing what is needed is patience and also making the right strategy when we have to sell or when we have to buy. If we have decided to invest long-term, I don't think we need to think about the daily price movements because it can interfere with our psychological
Besides patience, they need to have a target on how much price they will sell their investment to take the profit. Many people forget their target price to sell because they are too greedy to expect to make a big profit. That will not be a problem if the market still rises, but the fact is the market is too volatile, and we cannot expect to make a big profit in a short time. That is why we need to have a plan or strategy with the current situations that happen on the market so we can do something if the market change.