Both. A healthy human is equally both. Extroverted enough to go out into the world and make something of yourself. Introverted enough to look within often and keep developing your potential.
That's being an Ambivert. You and I both. Ambiversion is a term used to describe people who fall more or less directly in the middle and exhibit tendencies of both groups. An ambivert is normally comfortable with groups and enjoys social interaction, but also relishes time alone and away from the crowd.
didn't know there was a term. thanks. now i do.