I always try to NOT spend the money I won and invest it instead. Totally agree that the risk is too high and it comes with some effort, right timed decisions and some strategy, of course. So I only spend it to buy things if I don't have any other option and if it's really necessary.
We have to be very wise with our money. It is okey if we wanted to invest it again and again but what is the point to do so over and over again? The sky is the limit! At least, use a half of the money for our daily needs and use the other half for investment.
Right, we are talking about gambling winnings here and making profits in gambling is not that easy so we have to withdraw all of it as soon as we make some and try gambling again the other day, because if you are going to continue, you might just lose all of it and you are going to be provoked by the house making you to gamble more.
If somebody is lucky enough to earn some good amount of money by gambling then he must not go for shots again, not even the next day. In the world of gambling, everything is so random and victory is not confirmed by changing the day or waiting for a little longer. Best is to quit this game.