Your problem is hard quiting gambling when your addicted is not quite good to hear but i will give you some tips that useful for that problem first try to find another hobby that you can messed up your self again playing video games is one of the most solution .
substituting it with something constructive is a good idea but that substitute should not be an addictive one also.
an addictive personality is the personality that some people have got and the only way to treat it is to try and do some constructive hobbies like going out, excerpting and learning other things to do with his time.