I suspected you were older.
That's another cause of your lack of extreme differentiation. At your age, you
should be less differentiated, and more diverse in your abilities. If you were still extremely defined, there might be something wrong with you. Whenever I test someone over the age of 25, I always have them answer the test questions according to the way they were when they were young - say between the ages of 10 & 20 because by the age of 25, we begin to develop our auxiliary function, and by the age of 40 begin to develop our tertiary function. Once we develop those further, that muddies the water as far as testing goes. No one "changes" their type, they only further develop it, so ultimately, it is helpful to understand how you were as a kid.
Based on that, and on Xander's excellent insight, I would say you are an ENTJ who is doing very well at developing the auxiliary and tertiary dimensions of your type. ENTJ is "who you are" or at least who you started out to be, but now you have branched out, mellowed out, matured, and become more diverse in your skills and thinking. Consequently, you are less and less likely to find profiles that describe you now as accurately as they would have when you were younger.
Even so, here's a couple of sources I highly respect:
http://www.iusb.edu/~sbcareer/entj.pdf
ENTJ Personality Types