What I am?

I'm nobody in a world of nothing.
I'm a sin in a world of sinners.
I'm a dropwise in a rainy world.
I'm the truth in a world of liars.
I'm a joke in a sad world.
I'm the doll between puppets.
I'm the smoke of a smoked world.
I'm a survivor between the victims.
I'm the hero between the needy people.

I'm a tunder in the middle of a storm.
I'm the unknown poet from a world so well-known.
I'm everything I want to be,as long as I have the power of choose.