For one of my college classes I had to take a humanmetrics test. It's a test designed to see what type of person you really are, and what career you're in. I've taken many in my day, but this one is the best. Its not flawless, but I think you may discover more about yourself.

The Test
http://www.humanmetrics.com/cgi-win/JTypes1.htm

Once you take that it gives you at code (like IEBM, etc). With that code find the type of person you are:
http://www.personalitypage.com/portraits.html
and the career you should be in
http://www.personalitypage.com/careers.html

My code was ENTJ (Executive). I'm very pleased