$SOL Hnay I lost 8.7k, everyone. It was just a mistake in closing the order, nothing else. I intended to take profit and go out, but I mistakenly closed a losing order. So after 1.5 months of trading Futures, the total profit is 21k, and the remaining is 7.7k. My lesson is: is it expensive or cheap? The market pays me back and also takes back my money as a lesson, right? I'm sure I'll take a break for a while, because in the end, I am still holding money and not losing capital.