Well in gambling its all about the luck too not all the time the luck is with us and giving a good profit as we play, having self-awareness is the most ideal thing to do such as having a limitation to ourselves. It is good like making a limitation for the deposit for a day and next if you think its not a good game why not make a step back there's nothing wrong with it than urging too much to get grind more back the losses. Discipline is the most essential and fundamental in gambling, emotions must need to set aside.
Honestly, it is easy to give a piece of advise to someone when it comes to gambling. But when you are the one in this situation, I believe you will also make the same mistake. I am just basing on my own experience. I know, you need to set your limits if you are aiming to pay somebody or pay your bills. But when you are already deep in your game, what you will feel is you need to recover the losses and earn profits. And most of the time, you won't recover those losses and end up losing all if you will not stop chasing those losses.
In your example, it turns out that a man carried away with gambling forgets about his obligations that he had to fulfill but could not because he lost all the money. Such behavior can indicate two possible variants: carelessness or addiction to gambling. If he is thoughtless about his responsibilities no one will have anything to do with him, but if he is a gambling addict he urgently needs help from specialists.