Everyone, I would like to ask what is the safest margin ratio for a general contract. I was so scared when my margin reached 20% just now that I quickly added some margin and it is now 8%. Do I dare to go to sleep? I am afraid that a black swan will suddenly come and liquidate my position. I am extremely bullish on the coins I bought, and I think as long as I can hold on and get my money back, there will be no problem. Does anyone have any advice for me?