Detest a Pest?

I failed.
I'm nothing more than a pitiful waste.
Just worthless trash.
It stings like this ugly gash
on my head that they call a face.

How am I supposed to survive,
In that harsh world on the outside,
If none of you want me to strive?
You'd see me fall to my hideous death,
Than find a way to reverse ailing health.

Blame me for your chagrin.
You just jealous because I be grinnin'
When I'm chillin' with my peeps.

No creativity in your body,
The word fun not in your vocabulary?
Grave as a gun, trained on my chest,
But I'm not human.
I'm just a pest.

So what's one less
Ugly grin?
Am I too happy for you man?