What should i do with my life?

I will be entering my third year of university this September and I am currently enrolled in a bachelor of science in nursing program. I really don’t think that becoming a nurse is the right career choice for me but am reluctant to switch programs because I am halfway finished and it is such a useful degree to have in such a struggling economy. I have worked for a radio station the past few summers hosting my own radio show and love it so much. I would like to peruse a career in television broadcasting and realize that it is a tough industry to do well in. Should I continue my safe career in the nursing field or should I peruse the career of my dreams?