Any addiction is hard to quit, but once you have realized it that you have a problem you should look for professional help, the help of your family and keep a very clear focus of your goal, to quit gambling.
Agree, we can notice our self if we are already addicted in something like gambling. It is really hard to quit but if you put in your mind and heart that this is the time that you need to stop from being addicted I think you will make it. 