there's no specific strategy to beat the casino thats why its better to have less expectation when you gamble. Because if you're assuming to win or hit a jackpot and not thinking of the possible losses then it can give a negative result (i.e addiction and depression) for you as gambler. Hence, its a must to know the risk if you decide to gamble your money. The victorious moments of those who manage to win in gambling can possibly happen to you as well, but often thats not the case.
There will always be some people who thinks that there is a chance to beat casinos. I mean it is not really that easy, and it is going to take a long time but at the end of the day all people will realize that they can't beat the casino. They can try tactics, systems, strategies, methods, cheeky stuff, whatever they want and in the end they will lose it all given enough time.
House edge makes casinos mathematically impossible to beat. The biggest lie anyone can tell themselves is "house edge makes sure house wins overall, doesn't mean it needs to beat every individual", no that is not true it DOES mean it will beat every individual one day or another, may take some time but it will beat you too.
in sportsbetting, they may have the chance but with casino classics, i don't think so. those gamblers who are thinking that they can beat the casino are just risking their hard-earned savings if they will resort to using those funds just to augment their beliefs of beating the casino.
this is why gambling business is very profitable one. with their HE, they have advantage over their players. so even if you know a lot of strategies in those casino classics, i don't think it will help you in the long run. just remember to get out when you are on the winning side, at least get something from your games before totally wrecking up your savings.