You're either an observer or capturer, an introvert or extrovert, a doer or a dreamer.
But in all cases you can also be both, simultaneously: a photographer, an ambivert, a scientist.
People pigeonhole themselves into personalities based on their natural instinct. They refuse to leave their comfort zone. As Darwin taught us, however, those who adapt survive.
Every situation requires a different posture. It's your job to use whatever mindset is best suited for the moment. Otherwise, you can expect to stay in the same place.