Your strategies aren't good type because roulette game is far more winning than just betting on the red and the black for winnings. Though many commenters said they bet on red or black and turn winning for them, maybe that's their luck as luck is all about gambling.
That's what greed and ignorant do, they not think wisely before doing something in gambling. Continually doing that will make lose all your money without even realizing it. So you need to control your emotions just like trading.
Good decision making is the key in playing Roulette game, there's no strategies but thinking about how play goes will help you to think more.
Critical thinking skills is also essential for you to execute all the actions you've thinking.