Of course it is not wrong if you gamble but you know how to control your self and know when to gamble and when it is time to take a break.
If you want to gamble then you should because it is not wrong unless you are hurting other people with it like family.
True, it will be become wrong if your family became affected in your addiction in gambling. But once you know how to manage money and your self and you know how to control your greediness. I think there will be no problem at all.
yes that is a fact that gambling is only wrong if you play it in a wrong way, but if you are playing it in right way mean you have some strategy to play gambling then it is not wrong.