Sadness - Who am I?

What is the point, i got my mark,
Which shows my true self, doesn’t it?
But why pretend to be a princess?
I have no kingdom, and my crown is fake too.
It’s all spinning around in my head in a big mess.
If my fate is to be royal, then why am I not?
Am I really supposed to keep pretending forever?
So many ponies make fun of me, pretending to be someone else.
Now as I look at my hoof I realize. I don’t know who I am.