Stereotypes.

I smile a lot, so I must have the perfect life.

I cut myself, so I must be an emo.

I laugh and smile, so I cannot be depressed.

I like spending my day at home, so I don't have any friends.

I am no Tumblr and Blogspot, so I must have zero friends in real life.

I make a lot of mistakes, so I must be stupid.

I'm from a broken family, so I must be a rebel.

I have made mistakes, so I must be untrustworthy.

I make a lot of mistakes, so I must be hated.

I like to read books, so I must be a nerd.

I'm fat, so I must be lazy.

I hate my body, so I must be looking for attention.