This lesson has been quite deep. The coin's probe yesterday directly reached 0.234, almost causing a liquidation. In fact, there were quite a few orders at the 0.234 level, but my order was placed at 0.222, and I narrowly escaped. However, the entire process still caused the account to shrink significantly—last night, the worst was a loss of 135u, now stabilized at around a 40u loss.

What’s even more painful is that in the morning, the price returned to around 0.3, which was actually close to breaking even. But I was asleep and didn't set any take profit or stop loss. As a result, when I woke up, the opportunity was gone. So I closed half of my position, resulting in a 20u loss, plus a 10u funding fee. From this operation, the biggest takeaway is that take profit and stop loss are not optional—they are a matter of survival.