You must Master Yourself & the game of Roulette.
You are best to try and play Roulette as a hobby part time until you find out if you have the self control and skill level to make a living from playing Roulette.
Making a living playing rouletteYou will need a plan of how you will play roulette.
You will need to know what the truth is when playing.
What really happens when you play Roulette.
What is possible & what is impossible.
You will need a bank roll to get you thought the bad spins.