For one to loose in gambling is actually their fate but when it comes to loosing big then lack of control which might even end up as addiction might set in. Most gamblers are way too greedy take the little winnings tommorow is another day but most of them would want to get back at the feeling everyday has the same level of luck when it comes to gambling if you are opportunied to win stick to it and come back another day.
It seems to me that the essence of addiction is not in the desire to win or to win back, but in the desire of the very process of the game, so your advice is unlikely to help anyone. As we know, even very rich people who do not need big winnings suffer from gambling addiction, they depend on the very process of the game.