back then I thought I knew everything about gambling but now that I totally understand the importance of professionals I kept telling my Addicted Cousin to try consulting or seeking Help from a clinic.
though up to now he kept denying yet I will not stop to ask Him and help him get through this problem.
Go to the professional yourself and ask questions on your cousin's behalf. Tell him how often he gambles and how much he loses, how does he feel in general and other stuff that the pro professional will ask you about. He will make a conclusion and you'll see how severe the condition is. And then, in a relaxed atmosphere, tell about it to your cousin. Convince him to go to the professional himself. All of this might not work, but at least you'll try.
A person who gets addicted to gambling will only get out of it if they are willing to do that because you can't force someone to stop doing a certain thing as long as they are not ready to do that themselves. When it comes to gambling addicts, they barely acknowledge the fact that they are addicted, they will always be in denial and say that they do gamble but they aren't addicted to it even if you can see that they are spending all their time and money on it.
A professional, a friend, or a family member can only help an addicted gambler get out of their addiction if the gambler says it themselves that they are addicted and they feel like they should stop gambling as it's eating up all their time and money and it is causing issues for their life.
It all matters with someones self on which it would really be pertaining about the acceptance and realizations made out. You wont really be able to quit if you arent that serious on quitting.
Therefore, if you are really that meaning on quitting then you should do it on your own.