Summary after another wave of liquidation:

I entered the market with more than 70u at the beginning, and just encountered the rising trend of doge. I made 1000u in two days. Maybe it was too smooth at the beginning. I resisted the decline of BOME in the middle and exploded more than 1,300u. After two days of emo, I adjusted my mentality again and stopped being so eager for quick success. In a week, I made 2000u from 800u. I thought that I should be steady in the future, set a stop loss, plan the profit and loss ratio, don’t be so greedy, and make a move at the point I have studied well. Even if it rises to the sky later, I will not regret it. Indeed, I perfectly avoided the two days of purgatory at 413 points. After 414 stabilized, I did make money. Thinking about the halving of BTC, this wave of killing can be regarded as a perfect wash. I was a little bolder. I worked hard all night and opened a total of 600u positions. In the end, I also met my expectations and doubled. I was short for a long time, thinking that the band callback was over, and the position was inevitably a bit heavy, but it exploded again.

To sum up, I still didn't do well in some details, and I need to improve my mentality. When you can really stay calm, you will succeed.