You can’t have a strategy for anything until you understand what your goals are. For most casino gamblers, the goal is to just have some light-hearted fun and maybe win a little money in the short term. You might like the excitement of competing for a huge jackpot, or you might enjoy the challenge of getting the best odds possible playing blackjack.
Your choice of casino game will depend largely on these factors:
Blackjack is a great game for people who want their decisions to matter. But you are unlikely to win a huge jackpot while playing blackjack.
Slot games are good for introverts who want to go after a big jackpot. The house edge for such games is high, though. And you will lose more money per hour on slot games than any other casino game.