Destructible yet untouchable

Four years stuck in one stage of life.
Four years cadge and isolate from the world.
I've become scared of my own voice.
I would scream in the silence, but no one could hear me.
I want to run and hide, but I'm so blind that I get lost in my own mind.
I have nowhere to go, no family, no friends, and not even a pet.

I'm Sick of trying to live, Tired of crying.
The worst part is; no one knows that I'm alive
They think I'm a threat, but if only they knew.