I would say since you are interested in a wide variety of things, look into a major that could be a good base for all of these things. It sounds like going into Communications could be a good match for you. This would serve you well whether you end up becoming an actress/model or going into business.
http://study.com/articles/What_Can_You_Do_With_a_Communications_Major.html
http://web.olivetcollege.edu/careerdev/communication.htm