It has been a month since copying, and the ROI has been maintained at a level of around 15%, although it is not too high, because I have achieved a rate of return of several hundred before, but the advantage of copying is that the income has been relatively stable, with only a small loss , and all the profits came back in the follow-up, which is much more stable than my own orders. Although I had a high profit before, I lost everything overnight. . . It's too depressing.