I am myself and no one else

Myself and no one else

I am

A twig under multiple peoples feet

I am not 

The strong young lady my mother has raised me to be

I am 

What is nothing to most

I am not 

Someone who holds her head up high 

I am 

Afraid to express myself 

I am not 

A beautiful star that shines for herself 

I am 

 Like dirt that bothers your shoes 

I am not 

Many things 

Read the lines from last to first

To figure out who I am