But in any case, a person gains his knowledge gradually, also losing money
When people start trading or investing, they will certainly make a number of mistakes and lose money. One needs to take this philosophically. You have to pay for everything in this life. For knowledge and experience as well.
Unfortunately, people do not want to learn from other people's mistakes and prefer to learn from their own. There are many kinds of courses. However, everyone wants to try to trade independently on exchanges, and as a result, they lose money due to inexperience.