Whatever makes you happy. When I started to get into music some of my family members and even teachers where kind of confused/upset because they all think I'm smart enough to get a "real job". My dad always encouraged me to follow my dreams though, and he taught me that what you want out of life should dictate what you do. If u want a huge house and lots of money than u should probably go to university and study to be a big shot lawyer or something. But if you love music, and don't care if your a rag tag musician living in a bus and booking gigs at any bar that'll take you, even for no money, as long as you get to do what you love, than that's what you should do. Strive to be the person you wanna be. not who someone else thinks you should.
Have you ever heard the term "starving artist"? It is tough to get started in and it depends on the type of art you want to do. Many artist, like actors, have other jobs to help them survive until they can establish themselves. And many never do. If you chose to do this, and I am all for following your dream, just be prepared to not catch on right away.
I'm an artist but I'm also an art teacher, it's a strange situation sometimes. I know several sole artists and have known them from the beginning of their journey. They have a determination for doing art that cannot be penetrated. Not much in their lives are more important to them. They are interesting and invigorating to be around. What you really need to be asking yourself is... Do I have what it takes to be an artist.