In gambling we don't just win without spending and the spending is what gives us to that ability to carefully follow up how much we spend gambling, this also helps us to regulate how we gambles or how reduce the attention focused on gambling. Gambling is pretty much better when you used a particular amount to gamble and that amount isn't something you projected for some other things but solely for gambling so that when you lose it you wouldn't attach too much value to it or even regret why using such amount to gamble.
That is what we need to do in gambling, so we will not regret it when the money is gone. We can accept the risk because that will happen in gambling. If we do not win, we may lose but we can control how much money we can lose. Yes, limitations will be an important thing that we must do to prevent a big loss. If we are focused on gambling and control the funds, we will stop gambling at the right time without feeling sorry about our losses. We will remember only to use the money we can afford to lose in gambling, so we don't just spend the money without calculation.