Do you know who you are?
When you said yes, did you say that faster than a heartbeat or with doubt? If you said no then you're probably right.
We're all bright young things anyway. It's fun to explore, discover new things. Change our music preferences, experiment on the way we dress. It's always exciting to learn, to be a different person, to portray different roles because being the same everyday is boring. Every human being alive should go mental, be insane. Because at the end of the day, nobody would care that you tried to copy the mannequin's odd position at the mall or how you pretended to be British while ordering at McDonald's. You'll only regret the things you did not dare try, and living is not the same as being alive.