We don't really have enough to go on in order to give you any guidance. What are you passionate about? What fields interest you? Are you an animal person, a techie, enjoy arguing or debating? What jobs have to had and what do you like and dislike about each one? Is there a particular class in school that you really enjoyed? Why?
You want to pursue a field that really interests you. If you pick a field that you don't like, it will make every day miserable. Who was it that said something like If you love your job, you will never work a day in your life.
Best of luck! If you answer the questions above, it should point you in a direction.