Control of the Knife

Voices whisper in my ears,
Guide me through my life.
Possessed by overwhelming fears,
I take control of the knife.

The steel edge slices through bloodstained skin,
Creates a gaping wound.
A mouth of horrors to confess my sin,
Speaks of untold doom.

I flex my wrist and embrace the pain,
Reminding me this is real.
The only thing which keeps me sane,
Is locked with a bloody seal.

I put down the blade and watch the blood drip,
Knowing it's too late.
The blood which surrounds my fingertips,
May have just sealed my fate.

Voices quieten in my ears,
Fade out with my life.
Possessed by overwhelming fears,
I lose control of the knife.
♠ ♠ ♠
Quick thing I wrote in my study lesson at school.
Criticism please?