it is programmed to take your money, you can only get lucky but if you don't run away with your wins you are bound to lose it all, and you might get trapped in that constant loop of winning and losing..
The main question is when to run out.. When you are lucky enough to win from a casino, you get too enthusiastic and you can lose control. That's when all the gambling problems begin. Because when someone has had winning experience, he would always look up to it and try to repeat it. Because he already knows that it is possible. It is this feeling of opportunity that ruins many gamblers because they cannot stop.
Nice question because many gambler still don't know when they must stops from playing gambling. Everything will be change when you can win in gambling and you can forget your limitation as in that time, your greediness will be bigger and it is hard to stops yourself from playing gambling unless you have a strong control over yourself. If you can win in gambling, you should notice that is the best time to stops gambling before you lose your money if you decide to keeps playing gambling.
There is no guarantee you can win more money in gambling so you must understand that you can only hold and limit yourself from the lose. If you already lose the money after playing gambling for some time, that means you must stops immediately because the lose can be bigger and that will makes you in a hard situation without you can decide to stops playing gambling.