The contract has come to an end. I admit that my level is not good enough, especially at the current level. I can see it very accurately, with a success rate of more than 90%, but I can't execute it. I get panicked when it falls below and close it in a hurry. After a few operations, the direction I set before is a mess. It may still be a problem of insufficient money and lack of confidence. I bought 50,000 spot today and will not operate the contract for the time being. The main reason is that I am too tired. The contract requires constant viewing, but this is actually impossible. Wait and see how the spot selection is, and hold it for more than half a year