Correct, I know that gamblers have the expectation to profit from their hobby, and while it is possible to beat the casino over the short term, this is impossible to do over the long term, and personally I do not see anything wrong with that, casino owners do not create a casino to give money away to others, they do it because they want to make money, and it is obvious they have set the games in such a way that allows them to have a small edge on every single bet you could make.
It's very impossible to see a gambler beat the entire casino. Short term yes and that's how we should decide on how to keep our profits if ever it is your lucky day. It won't come too often when you try to get along with the casino with your profit because if you will stay there, the big chance of them recovering your profit is very high. That's not maximizing your potential and you're not able to control yourself from gambling. You have to make decisions that will be at the right time especially when you've won such amounts already. Because as I've said, it won't come to you everyday so when that day comes, you need to keep the profit and don't aim big.