When a person is too much addicted to gambling, it poses a danger to him. I would say that a person who is terribly addicted to gambling should see a good psychiatrist. So that through proper counseling of the person, the person can recover and get rid of this addiction. Besides that, how is that person living? Find out what kind of people he hangs out with or what his friends are involved with. It is best to move the person away from the source of the gambling. If the person is used to online gambling then smart devices should be kept away from him. And if he goes to a casino and gambles, he should stay far away from that place. Another most important thing is to be honest. The word says heaven with the righteous and doom with the wicked. I think one day that person will definitely give up if he can hang out with good friends.