What's the best strategy that could make a gambler high roi?

[swift]

I think Choose games with the best odds like Some games have higher odds of winning than others, such as Blackjack, Craps, and Baccarat. Knowing the game rules and having a basic strategy can increase the chances of winning. ,also Manage your bankroll like Setting a budget and sticking to it can help manage losses and ensure you don't overspend.