How?

She tries to hide the scars with long sleeves clutched over her hands,
and runs off to school, her sleeves held down with rubber bands.
She pastes on a fake smile, and obtains an open giggle,
but she can feel the razor in her pocket begin to slowly wiggle...
"Oh no!", she thinks "here we go again!"
And she runs off to a bathroom to uncontrollably begin.
She takes the razor to her wrists, and the blood begins to spill,
but she can only feel her pain so she cuts deeper even still.
Blood flows down her arms and onto the floor,
but she just can't take her pain anymore.
It's done, over, but the blood keeps pouring,
and as her body hits the floor the razor goes soaring...
An hour later, they find her body, too late to save her now,
and she'd hidden the tell-tale signs so well that all they could say was 'how?'