The only way gambling addict gets quiting gambling easily is when the gambling lifestyle is affecting them badly that it can harm, then the gambler addict have no choice to stop gambling just to feel better.
Hopefully, it is that easy for a person who has compulsive gambling disorder to quit gambling easily. But the uncontrollable urge makes it too difficult. That is why the person must admit that he has this compulsive gambling disorder first in order for the treatment process to initiate. Else he will be in a loop never finding an exit to his gambling addiction. Besides, a person who is in gambling addiction treatment will have withdrawal syndrome and that is very uncomfortable that is why many gambling addicts have a hard way treating themselves.
When a person is in trouble - be it financial or personal - they learn and make their decisions.
But - having said that - its also good not to be greedy for money and its also not good to have money on your mind all the time. this lust is crazy - try to avoid it as much as possible.