Personally, one of the best (if not the best) support system that a gambler could seek for would be his/her immediate family and peers. No one understands more than the gambler than his family or friends. No matter what happens, family will always be the one who would support and seek guidance in order to get through this rough road.
In the event that the family is unavailable, I would advice to seek some local government or NGOs that support addiction in general. They provide workshops and other relevant activities that would transform your addiction and re-focus such into other recreational activities.
I think he will feel not right if he shares his problem with someone who does not close to him because that will make him feel uncomfortable. Instead of searching for that local government help or institutions related to the addiction, he will keep that secret for himself. It needs more attention for people who close to him to watch what changes from him because if other people see something wrong with that addicted gambler, they will try to communicate or ask that person. With a little conversation, I think other people will know that person has a problem that needs to be solved right away.
If a person addicted to gambling must be hidden for himself, a person who is addicted to gambling does not want to know that he is addicted
to gambling. There are even some gamblers who are addicted, he doesn't want to admit that he is addicted. So from the family duty is to pay
attention to each member of the family, usually people who are addicted to gambling experience financial problems, and this sooner or later
the closest people will surely realize that one of their members is addicted to gambling. If it is like that it is indeed the best step to try to deal
with the problem of gambling addiction by the family first, if it still cannot be cured, Therefore, people who are addicted to gambling are very
forced to be handled by local government help or institutions that are used to dealing with the problem of gambling addiction.