Let me tell you, those so-called mentors, who create fee-charging groups and pull you in, have a large part of the reason because 90% of ordinary people cannot make a profit through this, especially those so-called mentors. They themselves cannot figure out whether the currency will go down or up next, but they can figure out that you will listen to them and pay the money. In the end, even if you lose money, you can get rid of the responsibility.
Is there a so-called business that is sure to make money? Of course there is, that is to recruit so-called "students", let them bear the risks, and eat the profits themselves. To be honest, you can't make any money at all with a fee of 399u a year. As long as you complain, those mentors will kick you out. What can you do?
So in reality, don't join any so-called fee-charging groups, and adjust your mentality. First, look at the high and low positions of a currency, and simulate investment at the same time, and slowly get familiar with the high and low positions of this currency. Once you have that feeling, you can start to get started slowly.