Can't decide career: Digital Artist or Police Detective?

I need to send off applications to universities relatively soon, but I still don't know what I should study.

I'm doing the IB and am one of the top students in my class (last semester I got 39 out of 42 points).

I draw all the time (traditionally and digitally) and am interested in going into the area of digital art which would include: 2D/3D animation/modelling, concept art, etc. I enjoy playing video games, so this ties in with my interests and possibly working for video game/film firms and suchlike.

However, many people tell me that you can't really earn a living like that, and that making art becomes a strenuous, compulsory process when you do so for a living. So people suggest I just keep it as a hobby. Then again this would be a flexible area to go in.

On the other hand, I'm also interested in becoming a police detective. I am fit and take Krav Maga lessons twice a week (if I would have more time, I would also do Muay Thai). I am good at analysing things and am cool/level-headed. Yet this area is not as flexible as the art area.

It doesn't help that these areas are unrelated, so any help/advice/suggestions are appreciated.

So yeahh

Thanks!