- In-depth study of probabilities, because you can't just go with the "illusion" that making money is easy;
- Have emotional control, both in defeats and in victories... always maintaining your strategies;
- Specialize in a specific betting niche, game type or sport... never "shoot in all directions";
- Think like a professional player... know that this is your income, that it is much more than just fun, and constant study and dedication are essential to maintain profit.
gambling generally depends on luck and probability in terms of winning and also includes gambling that requires skills to play it, so I think it is impossible for someone to understand something well whose purpose is to get victory or profit. another problem that tends to occur often is the loss of self-control, whether it is when winning or losing, controlling yourself becomes something that must be considered because it is indeed difficult to control it well besides that I think all gamblers have difficulty controlling themselves.
on the other hand I would not consider gambling more than fun, but maybe for or for professional gamblers they consider gambling more than fun like there is a side of profit that must be obtained, but considering that winning in gambling depends on luck then there is no clear certainty that you can achieve it even though they are professional gamblers. maintaining self-control may be better than others.