Recently popular Ming Ge’s ultra-short-term trading cycle, a textbook-like experience of a retail investor losing money, showed me my own reflection from the past.

The approach is high-frequency short-term trading: make a small profit and then run, hold the position when losing—this kind of operation is extremely effective in a trending market.
Unfortunately, one small slip was all it took: after holding on and taking a big loss, a series of impulsive, messy trades followed, and in the end the entire 2,000,000 profit was all given back within a month, and even worse, he fell into 700,000 worth of debt.