It is not that easy, quitting gambling would take some time and step by step process. You couldn't just do that in an instant, at first you will have a hard time on resisting the urge to gamble, but once you have already did, you'll get used to it and find yourself free from the gambling world. Quitting might be hard, but continuing playing gambling would be more hard.
it's really hard to quit from gambling and needs a time so we can be able to quit. I agree with meliodas said that it's not instant and we need to do step by step process but maybe there will any people that could do it by instant and they should be thankful for this because they can quit from gambling with instant. just keep in mind that we can quit from gambling and I am sure that there are people that will help us if we really want to quit from gambling and they will give their support to us.