Have you ever encountered a situation in trading where a profitable position was closed too early due to a misjudgment of the market, or held onto it out of greed only to end up with a loss?

Why does this happen? What should we do?

This is actually a problem with your trading strategy. You may often hear the phrase 'let the profits run for a while,' but how can you truly achieve this? You need to learn to use 'trailing stop losses or trailing take profits.' To achieve long-term positive returns in the investment market, in addition to learning how to stop losses during a downturn, you must also learn to reasonably apply trailing stop losses when you have profits.