Which me is me?

Am I the girl who can laugh my butt off and scream to the world that I love everybody not caring if people look out their windows. Who will steal a cherry from a grocery store and eat it without paying just because I can? The girl who waves at people on the bus, and pops into random classrooms to say hi? The girl who wants to freak people out and steal friend's phones to randomly text their friends that they love them? Who will break out into song and dance, take pictures of strangers, and stare up at the sky calling every star an alien space craft?

Or am I the girl who is depressed, sits at home on her computer all day. Who cries and obsesses over online boyfriends and friends. Who needs answers to everything, who has a small appetite, and can't keep eye contact with anyone. That annoying girl who tells everybody her problems no matter what, just loading all her baggage on anyone who will take it, but who will also sit by herself all day in school when she actually goes, not speaking one single word.

I act like both of these girls, the first with my friends, the second by myself.. but recently I wonder, am I the real me when I'm alone, or do my friends pull out the real me when I'm with them? How can I have two different personalities, the one who is happy and carefree and the other who is depressed and over-thinks EVERYTHING!

Depression has confused me, and I don't even know who I am anymore..