Put simply, no, you cannot learn to win at Roulette every time. Roulette is a game of chance and one where the casino has a house edge. Researching roulette strategy and knowing the best action to take in a game of roulette can help, however, to make for a better game.
While some people may claim to have a winning system or money management strategy for playing roulette, it's important to understand that roulette is a game of chance. The outcome of each spin is independent of previous spins, so there is no guaranteed way to consistently win at roulette.