Identity crisis at 20?

As the summer begins most people my age are concerned about having fun and getting to enjoy a couple months of freedom before go back to school in the fall. I am no different but at the end of the day instead of being fulfilled by the days activities I question myself “why is this important?” Sure many people think that once you finish school you have to deal with the real world. This is when we figure out who we are but that is not what is happened to me. I am lost in a world where it has constantly challenged me with the question “Who are you?” and responding with “I don’t know”.