A 26-year-old from my hometown, who was trading cryptocurrencies, lost 500,000 or 600,000 yuan after working for several years, and was still in debt of several hundred thousand yuan. He finally jumped into the river. He jumped the day before yesterday and was only pulled out today. Alas, be careful when playing contracts. Don't listen to those stupid animals who say to set profit and stop loss, manage positions well, etc. You come to this market to invest, not to speculate and gamble. There are only failures and successes in investment, not profit and stop loss.