I would definatively withdraw the vast majority of the winnings and use it to invest in something like a house, bitcoin or stocks.
Statistics are not in your favor, so if you win big, don't push it but take the winnings and use it to your advantage.
for me i agree with your idea mate if you win you must think wisely on how to use your winnings so instead of playing back and try your luck much better to invest it to something that might be profitable those two examples are good placing your money with the house or investing it even inside alt trading better to deal with this instead of losing it again.
I think you should be wise if were you put your winnings rather you invest or keep it as a savings. But the best you will do is to invest so that you earn good profit and your money will possible grow more. But if you have more strategy about gambling then you can gamble again, maybe you can win more. But the better is you spend it in most important things only.