If a person who is addicted to gambling realizes that he is addicted to gambling and he should come out of this addiction but he tries to come out and if he has 100% effort then surely he can come out of this addiction.
I have yet to see anyone who was able to get out of gambling addiction. Gamblers get out of gambling when they are in too much debt and don't have enough money to gamble. Only then do they take a break from gambling.
I think gambling addiction is one of the worst habits because every gambler gradually gets themselves addicted to gambling in such a way that they think of earning money from it to support their family i.e. they take it as their goal. Then their greed increases. As the greed increases, they become more addicted and can't get out easily. Gamblers who gamble should plan their gambling because they should remember that luck can never be changed from gambling.
A gambler can definitely get out of gambling addiction if he tries. A person is addicted to gambling but if he doesn't understand his bad side no matter how much you convince him he won't understand and he will continue his gambling even if he suffers financially. You can wake up a sleeping person but no matter how hard you try to wake up a person who is pretending to sleep, he will never wake up. If there is a gambler around you who has become addicted to gambling due to excessive gambling, you can try to get him out of that addiction on your own initiative.
For example, the free time you can spend with him in physical sports, you try to create a good relationship with him, hoping he will understand his mistake and when he understands his mistake, he will definitely be able to come out of this addiction by his own efforts.