Thoughts on Contracts: Through the operations over the past few days, I found that beginners should not go all-in when trading contracts. They should gradually increase their position using the ratios of 5%/25%/50%/75%/90%. This can help control your risk. Do not act like a gambler; this will significantly reduce the probability of liquidation. Also, remember not to be greedy. The cryptocurrency market and the stock market are the same in this regard: mindset and understanding, actions and behaviors!