I Can't Think!

I'm supposed to be writing a story right now,
but I just cannot think! I'm having a cow!
My teacher is talking, my neighbor is loud,
I can't write my story and don't feel too proud.
I started it out with scribbles and doodles,
And my fingers are starting to feel like raw noodles.
My pencil is dying; my brain's out of led,
And all of my blood's flowing out of my head.
My foot is all crumpled; my paper is numb,
My stomach's all knotted like an old piece of gum.
There are twelve pens beside be, all run out of ink,
I'm trying to do this, but I just cannot think!