Being responsible when gambling is very important, but you have to be very alert to keep it up. We often dont realize how tempting possible wins can be. The hard part is figuring out when something goes from "fun" to "need." How can we help people think in a way that keeps them from becoming addicted to things they enjoy? Maybe the answer is to regularly think about yourself and set clear, unwavering bounds. The goal is not only to gamble safely, but also to keep things in balance so that gambling is still a choice and not a must.
I think they need the right mindset towards gambling first and maintain it so that it doesn't change after gambling several times. People tend to change their attitudes after gambling a few times, especially after winning. They thought that they could still win one more time but it turned out that it wouldn't work. The last win they got was the last win for them, and after that win, they lost. Maybe they need to set limits on gambling so they don't overdo it and can immediately stop gambling when they've had enough, whatever the outcome.