I think any gambler who actually claim to have set aside a certain amount of money for gambling, and then later on go ahead to gamble past the money he or she has set aside, i personally assume that such gambler never did set any money aside for gambling in the first place, yes i do agree that losing self control can cause a gambler to gamble above limit, but to the extend that such gambler will not know what he or she is doing, A gambler who loses money to gambling and come back to start regretting is not but a kid, and kids aren't supposed to be gambling, they are supposed to be in school studying.
Don't miss understand the point or where I am coming from, there is a difference between staking much more than one can afford to lose in gambling, and regretting after loosing the money, from playing normal gambling and losing, then regretting, for the former, the regret is understandable, but for the latter, the gambler before engaging in gambling should have known that its either a win or a loss, and which ever comes, the gamblers should take it wholeheartedly.
Or maybe he actually set aside some money to gamble but because he lost control of himself caused him to deposit another amount to continue gambling. This is normal for many gamblers because they find so much fun playing gambling that they don't want to stop gambling and causes them to deposit some more money. But if he does put aside some money to gamble and doesn't lose self-control, he really isn't going to gamble and has had enough of it.
In gambling, we must prepare an amount of money we can afford to lose because playing gambling means we must accept all the risks, including losing money. And don't be too sorry for losing the money because we know that the amount of money won't come back to us and it turns out to be true. We can regret having lost money but we should not overdo it and there is no need to recover lost money in gambling.