First of all, futures have earned or made a lot of money, which can be said to be easy to make profits, but few can make stable profits;

Secondly, there are different opinions about how much it costs. The least is a few ten thousandths, and the most is generally 20% to 30%. Note that we are talking about relatively stable profits, such as annual income 10% and 20%. It is nothing to make a profit by trading once or more;

Third, in the industry, I only know that most profitable customers are institutional customers, such as hedging. As for profitable customers, only 20% are individual customers, which means that few individual customers can make stable profits.

I won't talk about some of them. I will observe and study more in the industry myself. Good luck.