While it is theoretically possible to make a living off of playing roulette, it is extremely difficult and highly unlikely. Roulette is a game of chance, and the house always has an edge, which means that over time, the odds are in favor of the casino.
Basically, no system is going to turn you into a full-time, professional roulette player. However, this isn't to say that you can't drastically improve your roulette game by playing a lot. In fact, sticking around the tables and making good bets is how people go on those million-dollar runs that you hear about.