From there, it's not a good response and action if you have to deal with failures and frustrations. As a gambler, we're very emotional and since it's attached with money, you'll be dealt into incurring more losses and financial loss upon losing control emotionally.
This could be the case, if a gambler has experienced severe depression as a result of frequently losing bets so that the money he has has run out and there is nothing left, then the gambler will think and immediately take action, it is better to borrow money from other people so that he can carry out his gambling activities and he didn't think with common sense first that the step he took was a big mistake for his future life.
Instead of feeling happy, he will soon experience regret, sadness and adversity.
Yes, this is based on losing control of their emotional feelings as you said above and in my opinion, this kind of experience will be experienced by gamblers who are seriously addicted, because this type of gambler is not able to control themselves well, which includes their mindset. They only think about how they can continue gambling.