No matter how much I want to believe that there is no such safe way, we cant ignore the fact that the experience gambler win more than the new gamblers, there must be a reason to that.
If not wining but there must be a way or instinct to lose less in gambling that u get over years of experience.
Yes of course there are things you can learn about gambling to become better and play safer. The most important thing is bankroll management. Good gamblers know they can lose multiple days in a row and prepare themselfs for these events. Don't hang on to your losses. Try to start with a fresh mind the next day instead of trying to win your losses back by betting more.