At least with sports betting, you can rely on something. Stats, analytics, team news, sports updates, all that. In a casino, it’s all just luck. Nothing wrong with that, but just don’t expect to suddenly start getting lucky all the time. Other than that, read up more on slots https://www.theleaguepaper.com/guest-blogs/440088/slot-machines-how-to-win-and-how-they-work/ . I think if you’re just getting into casinos, slots are a pretty good place to start.