--- Often I hear people stupidly espousing a creed you've probably all heard before. It goes something like, "you can't do it for the money"; they are, of course, referring to a career in art. It's a sibling of the talent myth and leads people to believe that unless you were born for it, you'll never succeed. It also seems to imply that it's alright to work a pedestrian job even if you hate it; really, if there's anything you shouldn't be doing for the money, it's putting up with terrible management at minimum wage just so that you can keep on being a Wal Mart greeter.
--- Don't get the wrong idea; I'm not saying that we should base our careers on a salary chart, but if anything, you should avoid deliberately pursuing a career in your passion. Again, I'd hate for you to walk away with the wrong impression, I love art; I do, but I've seen a lot of promising young artists go down in flames. The problem is, they had no idea what they were getting into was a business - somewhere along the line people seem to pick up the false notion that, as an artist you don't have to get a job.
--- Ask yourself two, simple questions, firstly: Would I like to do this every day, for eight or more hours a day, for the rest of my life. And secondly(if yes): Would that still be true if, every other day there were a back seat driver that I couldn't ignore, telling me how to do it.
--- If you answered "yes" to question one, but "no" to question two, then you're very passionate about your artwork; this should terrify you. It's a tough pill to swallow, but too much passion can actually work against you; if you can't make compromises then you're probably in for a very disheartening experience.
--- I was very careful to use the word "deliberately" earlier, when I was describing which careers you should pursue; some people get very lucky and stumble into nearly perfect situations. I wouldn't count on it. Find something that you love, but not too much - learn to do it well. Do it every day; do it for the money - because you can.