I think every gambler realizes this when they win big or small. I think what destroys them is their greed and overconfidence when they win. In this case, a wise strategy is to use some of the winnings that have been withdrawn or secure your capital first and avoid the risk of losing everything if you continue playing. However, in gambling luck can change quickly, and there is no guarantee of continuous winnings. Therefore, discipline and self-control are very important to maintain the victory that has been achieved.
Grabbing the profit, once it's above the wagered amount and meaningful enough to settle few or more financial needs, then it's not a complete loss. Games change, and when luck shows a green light, it'll not be steadily rewarding to assume it'll stay greenish till the game completes, one team might cut the ticket, which is annoying.