That's it, I'm free

I wake up in the morning,
There's blood on my pyjamas,
I realize I've cut myself,
Deep through the veins.

I can't remember me doing it,
So where does it come from?
Cuts cannot appear like that!
So how did it come?

The blood seems to have stopped dripping,
I cover this up with my wristbands,
Cover up the stains on my Pj's,
And wash my hands.

Next morning I woke up,
Same scenery, my wrist's cut halfway,
But this time it's the other one,
The cut follows the veins as a train on the railway.

It's time to go to school,
I go down the stairs, wanting a cup of tea,
I try to open the cub board, my hand's going through,
That's it, I'm free...

---The end's a bit crappy, I'm trying to improve it but for the moment I don't have much ideas--