Well, plenty of people do change their minds about their types after becoming more familiar with the theory. Plenty of people here have changed their displayed type. Nothing wrong with that. And some people do lie in the middle of the I/E continuum.
I assume you've looked at the Fi vs. Fe functions. Is there one you relate to better?
Definitely look into the functions....it's easy to mistakenly identify with what you find attractive, whether that's ENFJ or INFP for you.
I have a friend who I think is eNFJ, but he thinks he is INFP. I think the INFP profiles just appeal to him, and he's never looked into functions. He sees himself as some kind of tragic loner with a heart of gold, but he's really a sociable person who clearly judges based on external values.
"Charlotte sometimes dreams a wall around herself. But it's always with love - So much love it looks like everything else. Charlotte Sometimes - So far away, glass sealed and pretty." - The Cure