A certain trading coin suddenly plummeted, and I woke up feeling like the sky had turned dark. After opening a long position that day, I was extremely sleepy and just covered my head and went to sleep. The first thing I did upon waking up was to check my positions, and I was shocked—my holdings had disappeared. I thought, "This is it, I’ve lost big." But after checking the trading records, I realized that the take-profit order I had set earlier had automatically executed. It was a false alarm. This incident taught me a profound lesson: always set take-profit and stop-loss orders in advance if you’re holding a position and plan to sleep. Otherwise, you risk being stuck tightly or missing the top exit opportunity. Fortunately, I developed the habit of setting take-profit orders before sleep, which helped me avoid a disaster this time. This kind of insurance approach is worth every trader learning.