In short, is the martingale strategy in betting in such gambling games such as roulette and dice do really is effective strategy? For example, what if you are winning, and every time you win, you double your bets, and basically apply the martingale strategy, which is to double your bet when you lose.

Would that make a huge impact to your funds? I haven't tried it so far, but for me, I don't that is really effective as if we lose, we aren't really going to win right after, because there is still a possibility of losing once again.