Previously, I lost 120,000 RMB principal in half a year on a large position contract. I stood at attention and did not expect to get my principal back. I recorded the first day of long on a small position contract. Currently, I have 460u principal and hold 32 cottages of my own choice, 100u each. I sold Bitcoin when it rebounded to around 58,000. If Bitcoin plummets again and breaks through 52,000, there is a high probability of liquidation.