If my money has been more twice , at least I will take my asset or add a little of the profit. Most people are tempted in the first win, but that's actually one of the cause of being lose, because they can not control their emotion. They want to win a lot. So it would be nice to take your asset first, then play again. So tomorrow you can play again and who knows tomorrow will be your lucky day.
You would always tend to chase more profit when it comes to making money , so better to cash the money out while you can rather than keep making bets over and over again. You wouldn't get real benefits for long term. Just expect nothing from gambling.