Opening Studio

I'm a 15 year old from the bay area, and have been interested in tattoos for some time. I've been thinking about trying to gain an apprenticeship, and after a couple of years, open my own shop. I'd like to know if tattooing would bring in a sufficient pay, and how much it would pay per month/year. Also, how much would starting a shop cost to open, and maintain? And how much would that rake in? :D thanks a lot folks.