I am...a time lapsed video

I am blank. Staring at my keyboard with no idea of what to write. I am many things. And there is no definition, for what I am is not who I will be next week, or even tomorrow. I am Mackenzie on October 5th, 2015. Tomorrow I will be Mackenzie on October 6th, 2015. My growth may be microscopic, but it is still growth. For you to ask to define myself is merely impossible. I am a seventeen-year-old girl who is more of what others have made me out to be rather than what I actually am. There is a void. I am a void. Only to be filled little by little by time and wisdom, or maybe not at all.  To be defined by a simple word is personal blasphemy. You cannot ask me to define myself because it will be biased and inaccurate. You cannot ask others to define me, that is also a bias opinion. You must think of me as a time lapsed video. Start it at birth and end it at my final breath. Even then you will find no single definition for me. You will only find many definitions of the different versions of me. I am not the same person I was a year ago, and I will repeat that every year until death. Time lapse me under a microscope of definitional values. So who am I? In that time lapsed video, I am sad, I am happy, i am the smile on someone’s face, and I am the bitter taste in someone’s mouth. But I am not one thing. I am a time lapsed video. Eject me from your camera, and plug me into whatever you find most convenient to watch me on. Speed me up. Not too fast, you might miss a version of me. You might miss a definition. So, who am I?