The idea behind gambling is to win money. While most of us with gambling addictions have other motives and reasons for gambling, we all want to win. The problem with winning, is it re-enforces the notion that you can win. It is so difficult to stop gambling if you have been gambling and winning. You fool yourself into thinking that gambling isn't a problem. You tell yourself that you are in control. Ultimately in the long run, the house of cards comes crumbling down. It's an incredibly destructive pattern of positive re-enforcement.