Casino gurus don't win at every game they play. Whether it be at roulette or poker or blackjack, they simply watch and bide their time. At traditional casinos, they manage their judgments by walking around and observing the losing dealers or losing casino members. In online casinos, they check the authenticity of the sites before they even think of sitting down to play.
With regards to the Martingale method of betting, which means each time you lose, you double your bet for the next round. Casino gurus do that simply because after doing so much research, they have full confidence in their skills and ability. This method works only when you have great amounts of money. Just that one must take note that many online casinos have betting limits. Casino gurus understand their own level of playing. If I'm not that apt at poker, I play blackjack first, win more money than proceed on to use the Martingale method on poker to increase my chances of winnings and to give myself a testing ground on my mental ability and enhance my skills and confidence.
Casino gurus don't just guess from the heart. They do lots of observations and study the CD tutorial software. Believing in practice makes perfect, why not do as the gurus do, practice till you're more confident? Roulette and all kinds of games need good Mathematical understanding so build up your senses of numerals and figures, then you can also be an expert, or in future, a casino guru, in your name and game and in your own rights!
