In fact the gamblers never like to accept their defeat and the money they have lost. They always think that they can recover their lost if they will play gambling again. But for every time they try again and again and for every time they get the same result.
Of course we cannot just accept our lose. But the emotion that arises because of that defeat will certainly not be good for us if we continue gambling to chase what has been lost. Calming ourself for a while and trying to play again from the beginning and forgetting what has happened might help us a little so we don't fall deeper.