There's no real money to be made by gambling, and the only people making money is the casino owners.
It's true that it can be fun though, but that's why you need a budget.
There’s money to make in the casino the only problem is just casino always win due to house edge but that doesn’t mean there’s zero chance player will have profit.
It’s just house edge that will take effect in the long run so losses will always overlap profit on every gambler.
That’s why gambler should really use it for recreational purposes only. Enjoy when win and move on when lose.