In any case, you must not borrow money to do this. In China, waiting to get your money back is not an option. Unless you have particularly good vision or inside information. I suggest you return other people's money to them first. If you still have some hope for the stock market, then choose an agricultural or resource stock and hold it for a period of time, which may be a few months or longer. Which one to choose, I don’t know. It depends on your luck and vision. In the stock market, you can't be too greedy and just stop when things are good. If it feels the same, just stop it and never do it again, because after a period of time in the future, ordinary people who are still soaking in the stock market will be "dead and dead."
Making money should be a happy thing. If you are not happy, don’t do it.
Wish you good health and good luck!