Giving life meaning

I'm struggling through this stupid personal narrative for my English class. I've been thinking about it for weeks and I still can't come up with something to write about. I feel like my life is completely vacant of meaning... which is so not true, I just can't find a defining moment that I really want to write about. I mean yes I've had defining moments but none that I really care to share with the 21 freshman in my English class. Not that I'm afraid of what they'll say, I just don't care to open up. I'm deciding if I want use some stupid experience and just fluff the three page paper... but that just goes against my ethics, I can't bring myself to write something that is vacant of real emotion, and yet I don't really care to show the class anything in my life that has had real emotion. I'm awful and brainstorming, usually something just comes to me and I know what I want to write, but I'm so lost. My head is just swimming in so much thought right now that I can seem to nail one to the wall. Usually my thoughts aren't so elusive but I have so many different mixed emotions life right now that this English paper is one of the last things I really want to write.