Hiding. You deal with your depression by wearing a mask. No one ever knows your depressed, so no one can ever pity you. On the outside you're calm and collected. Inside, your blood boils... But that's ok, as long as everyone thinks you're normal.
You are like majority of the people in today's society. You probably like the latest trends, but not because they are considered cool; just because you like them. Continue being you, people like you for it.