As the saying goes, experience is the best teacher, so never be afraid to try new things, but that doesn't mean you have to gamble blindly because losing money is a definite possibility. The point is that experience can overcome various problems of doubt in making decisions, but in gambling, especially in casino games, your experience will not affect the results of the game too much, especially in terms of winning, but rather the experience will only be useful to minimize the loss of money so that it is not too significant.
Actually, you will not feel various doubts in making decisions if you know and are aware of the risks from the start and if from the start you only use the amount of money you can afford to lose, so that defeat will not be a big problem.
Maybe it is more appropriate that there is no experience that can make us win for sure, but the experience that has been had will make us think about doing the right thing, such as withdrawing when we have got the final result of the gambling that has been done. Knowing when to stop gambling activities is something that must be applied, because some people who cannot stop consistently are trapped in an addiction that makes them lose a lot of money, but that is the risk of their own wrong actions.
You are right, the key is that we ourselves must be able to realize that we do not have to gamble excessively because there is a big risk that can happen and it will definitely happen. Usually people who are not willing to lose their money in gambling are those who always want to recover their losses and that makes them continue gambling without caring that the money that has been lost in gambling is quite large.