The punching bag

I am so lonely
I punch my punching bag
I hit so hard
I know where to hit so that it hurts
But someday I am scared it will hit back
But the punching bag is to weak
Sometimes I miss
I hit myself
It hurts
I cry
Most times I hit myself
I'm scared whats going to happen
When the punching bag is gone
I guess all hit myself more
But it hurts...
On the inside...
Without my punching bag I am scared
But why?