Haha cheers for the compliment
I try! Yeah well I draw as a hobby. Was given many chances to go down that path, but when taking all things into consideration (demand/change of technology/economy/recognition etc), I dont really want to end up drawing to pay my bills, and have to stress with coming up with what CUSTOMERS would buy.. and ultimately end up hating art! Which is why i chose to study Law and Commerce instead and keep things like art as a hobby that i actually enjoy doing!
Then again i'm also only 18 so my brain is fucked up in making decisions.. Honestly don't know what i'll be settling down to do! =p
I have a buddy that does graphic design for a living. For a while there, when he was trying to get rid of some debt, he was taking on a lot of freelance work from home. But it was always for companies that had no clue what they were doing, what they wanted, what good design work costs, etc., and he was doing stuff he really didn't like but had to do to earn the cash. When the debts were paid, it didn't take long for him to totally drop the freelancing for any random company off the street and now he just does it for projects that are of interest to him, where he'll have more control over the end result rather than doing "design by committee" for some company. And he does art, when the mood strikes! But it's always for himself, not for someone else, not for any other reason than to satisfy his whims and desires. He's a much happier guy for it, too.
It's a great thing when you can do what you love AND get paid for it. But for most people, that doesn't happen - in which case, you do what you must to get the money to live, and do what you want on your own time. You would love being an artist - if it was your art, done your way, and someone was willing to pay you nicely for it. But if that never happens (and it's not likely to happen, though not impossible), you do the art anyway, just to make yourself happy. Always do something that requires some talent and training for yourself, no matter what you're doing to pay the bills, because not only will it be a source of happiness for you, but if you're truly good enough, you'll be remembered for it, and if you're good AND lucky, you might get discovered and it will become your profession as well as your obsession!
BTW: no 18-year-old ever has a truly accurate picture of what they'll be doing for a living. If I told my 18-year-old self what he'd be doing, living through, making a living at, etc. by the time he was my age (45), I honestly think that young smart-assed little punk would be laughing at me...

Even if you have a solid idea of your career path and manage to somehow stick with it, you'll learn that it wasn't really 100% exactly as you envisioned it - because fantasy can never live up to reality. But that doesn't mean that reality has to be all that bad - just not exactly what you thought it would be.