Who Am I???1 lyrics

Who am I? Do my genetics decide? Am I a predetermined piece of sh*t, or is that just what transpired?

Well I'm bolstered by the transience of identity
Don't tell me who I am
I am nothing and so are you
And that's good it's like when I speak of I, I speak of you
It's hard not to when you're just a character within other peoples lives
Who am I?