Try having a withdrawal therapy like the ones who undergo drugs. Minimize your gambling activities little by little until your urge to gamble is gone.
Yup the urge in gambling is just on your mind try to just refresh your head with no gambling on it, me I don't think im gonna be addicted with just gambling I play gambling yes but in moderation.
Gambling is good when you play it or treat is just for fun, but if it becomes addiction then it would be really difficult for anyone to quit it so easily.