I'd consider poker career similar to sports career. You need to put thons of effort and time into it and most of the people doing it can get by, but are not superstars. They break their body to make a decent living.
With poker it's going to be the same. Endless hours of grinding behind your screen to make same or sometimes even less than you would at your regular 8 hour work. At start it might be fun, because you might not consider it a job straight away. After a while it becomes a stressful job that you MUST do to make a living.
The only beacon of light is the dream to strike the gold. Go deep in some big tournament or something and cover lifetime of expenses. You must determine however, are you a dreamer?