Have you considered taking a career assessment? These tests (including free ones found online) can be a wonderful starting point. Understanding more about yourself will help too, such as personality type, learning style(s), and multiple intelligences. Using this information, you can begin to learn where your natural aptitudes lie and can point you in the right direction. Unfortunately, I don't feel like one assessment will have all the answers -- hence my recommendation of four!
Internships, job shadows, and cooperative learning experiences can all be useful in gaining insight into what career would be a good fit. Interviewing people who do what you're interested in, as well as researching careers online, can be an interesting way of gaining insight and information.
One invaluable resource that I frequently use is the Occupational Outlook Handbook (bls.gov/ooh). In addition to learning about what jobs are available, you can see what a typical day looks like, the education needed, the 10-year career outlook, and salary ranges.
This should get you started! Armed with this information, you can better utilize your time with the school counselor and/or career center on campus. But I'll follow this and will be happy to answer additional questions if you have them!
All the best!