Do you have a job or a career?
The former pays the bills. The latter speaks (in part) about what you are. If I polled a large sample, I'm fairly certain that a significant percentage would say they are in a job and don't understand their career. Meaning, what they do every day is not aligned with what excites them. It's easy to know what excites you. It's harder to have a bill paying job that allows you to exercise your talents every day. I honestly don't have the answer. Nooone does. But I can offer practical experience. If you want advice, please read the attached article. It is my attempt at a "how to" for picking your career.
The article is titled "How to Decide on a Career and a Job within a Career" and appears at http://www.qualitymindsinc.com