Hope your big wins, did not just go back into the casinos. 
I usually spend small winnings to get back into betting at the casino. As for bigger wins, I rarely get them, maybe we could call them the biggest wins for every gambler, which of course is different. I will withdraw and spend it. it can run out or leave little to continue the game.
I don't think there's anything wrong with returning to play after winning. even with the winning results that we have obtained. in fact, we will also return to betting regardless of whether we make a withdrawal for our enjoyment or not.
I always set limits on when I should withdraw from gambling, especially after I win. The reason is that our winnings turn into defeats if I continue gambling. I felt that a lot when I first started gambling. I used to think that if I continued gambling I could get bigger wins, but that was all wrong because in the end I couldn't enjoy anything. That is a form of greed that I now avoid.