Here they are: 1) What breaks your heart? That is what you should devote your career to. 2) What did you love to do in your free time when you were 10/11? 10/11 is when we are at our most pure, in terms of interests / passions / proclivities. Good luck! There's also a career interests profiler called ONET that might help.
http://www.mynextmove.org - Tell Us What You Like to Do
Then, when you have some options, use ONET to do research about qualifications, etc. http://www.onetonline.org