Every gambler has their own story how they fight their addiction and I am agree with blockman that not all gamblers story ends up with a good quit and did not play again. But in reality As I observe I think out of three gamblers want to quit but only 1 got his will and leave the gambling world . The remaining 2 are also different story 1 of those are cannot control himself and did not stop gambling. But the remaining 1 he can control himself but he will gamble if he had an extra money.
Sometimes it's higher than that and only a few really are able to quit. Each has circumstances to face with and we can't help from that situation because they have to deal it on their own.
The control that we have varies on how we're too emotional with the situation and it's not helping us if we're too dependent on our emotions.