just grin and bear it)
Do finish University and find interesting job! 

If you don't like Business Administration, why not shift to a course you like and enjoy.

I see that you like Art, then go for it.

I believe passion is most incentive to compel your suceess, but it is hard to seek the motivation for a young girl who seldom does. 

I am a graduate of Business Administration. At first I thought it was just easy and no Mathematics subjects! But, I was wrong!!!  It has a lot of math subjects! I got crazy with Accounting, Statistics and Algebra! Ahaha I don't even know how did I survive studying it. It's not a bad major anyway. But, my advice is much better to get a major that has license. So that whatever happened, you still have the job. And,then get major which is really your passion so that you could have a balance life. You're earning, and at the same time your enjoying. Good luck!

Furthermore, have you made any effort of approaching arts or its related fields? If you are really intrigued by arts, there is no one who can stop you from approaching on your own as a hobby.