That's right, if gamblers don't want to listen to good advice, just let them be because gamblers will feel the good and bad. We already have good attention so that he doesn't gamble excessively and also don't let him experience big risks in gambling, but our attention is simply ignored and the gambler continues his wrong behavior.
The majority of gamblers who find it difficult to listen to other people's advice fall into the category of addicted gamblers.
Yes, they will gets the affect of what they do and if they can feel that, they will regret by not listening other people who advise them. But we know that advising a gambler who already playing gambling too often is not easy because they gets many experience that they feel it's exciting. That's why they still want to continue playing gambling and will used much money than before because they want to winning the games. If they want to listen advise from others, at least they can introspect of what they already did so they will know that they almost playing gambling excessively that should stop right away before they lose control. Not many gamblers accepts other people advised as gambling can tempted them to continue playing without stop.
I think that losing would definitely affect me and I could behave very badly towards the people around me, probably even yell at someone. It turns out that this is similar to the fact that we transfer negative emotions to these people, in turn, they will then transfer these negative emotions at work or at school. Therefore, we must control ourselves even if we lose. It is probably worth considering reducing the size of the bet so that it does not greatly affect our psychological state.
On the other hand, some balance is maintained here in the emotional behavior of the player. If he shouted at his loved ones after a loss, then after winning he can rejoice and give gifts to his loved ones and say kind words. It turns out that this is a kind of emotional swing, I think that this gradually unbalances a person, which ultimately, after 10 years, will make him emotionally unstable and require treatment.