Maybe I will ask first about what you mean by success in gambling, do you mean achieving financial success in gambling? if that is the question then I think everyone will answer NO, gambling can never be used as a place to achieve success in life especially in financial terms because after all there is no certainty and guarantee that you will always win at the end of each game.
And we can see which one happens is the opposite, when someone comes with the aim of making money but what happens is the opposite, instead of getting a lot of money and improving their financial situation but what happens is they lose a lot of money from their hard work at work, and also I don't think gambling is important, this is nothing more than a fairly useful activity when I'm really bored in my spare time.
What you said is true, it is indeed impossible for someone to be successful just by gambling. What I mean is that it is impossible for him to gamble and then get a very big win that makes his life change drastically suddenly, unless maybe we build the casino ourselves and run it well then it can be said to be successful but building a casino is not easy apart from the large funds that must be prepared there are still many other aspects that must be considered carefully.
People who come to gambling with the aim of making money tend to end up losing a lot of money, this is because of the drive from the thought of wanting to get a win which in gambling is uncertain so it makes them continue to pursue it even though they have to spend money and money again and again. Indeed, it is better to be able to gamble just to fill your free time, it is safer.