I have no idea what I want to be

So I'm in my second year of college and I'm still not sure who I want to be.. I did some research online and I think I want to become a nurse, it seems to be a a hot new field according to hottest careers at real work real pay. They say that the demand will grow by more than 20% in the next 10 years and they pay is great too, how can I go wrong? I'm not sure about this yet, but I'll start taking more life sciences classes to see if I like it and I'll go from there...