If someone is a problem gambler and has repeatedly relapsed to problematic behavior related to gambling, I have come to the conclusion that it's best to quit cold turkey.
With other things it can sometimes be recommended that the addict slowly winds down their consumption of the addictive activity or substance, but that doesn't sound very realistic with gambling, does it?
An addict can quit gambling by meeting a professional, those professionals have helped alot of addicted gamblers quit gambling and they have the experience they'll use to handle your issues. No gambler should think he can do it on his own. If you decide to quit by yourself, you can always get into temptation that'll make you to go back to gambling. Addicts should also let their loved ones know about the problem that they're going through so they can help too.
Quitting slowly can be challenging but when you're getting guided by a professional that specialized in curing addiction for gamblers or other activities. He'll help you stay disciplined and you'll be free of addiction at last. Many individuals became addicts as they were gambling for money so getting them a good source of income before they quit or reduce gambling will help them to stop been addicted.
Trying to quit on their own is often a sign they are still not ready to quit, since they still believe they have some control over their addiction and they prefer to do it alone thinking they know better than the medical community and the decades of experience they may have, which sounds really dumb when you think about it, but that is exactly what they believe, so until those people finally admit they need to receive professional help, it will be impossible for them to improve their condition.