People often say that "the one who knows how to sell is a master", but I think "selling at a high price will always make money" is the truth. I have seen too many people have too high expectations for a certain coin. They could have made money, even several times the profit, but in the end, the profit turned into a loss, and they finally chose to sell at a loss. You have to remember that as long as you make money, you should sell it. This is correct within your cognitive scope. Instead of thinking that not selling at the highest point is wrong, it is better to focus on achieving profits.