Who am I?

I don't know who I am, I can't find my identity, nobody else can see it and I can't either, nobody knows I have one and they use me for reasons that nobody has to go through. I want to say something but I can't talk, my mouth is being controlled by so called people who are my friends, my tears are held back by the few emotions that I don't feel.
PLEASE TELL ME WHO I AM.