Absurdity

I feel so bad. I am responsible for a big fight, I punched my brother for no good reason. I hit him in the eye and my God, there's a red spot. I think it's going to bruise. I just feel horrible. I can't even look at anyone. I got an exam tomorrow. I really don't feel like taking it. Why did I have to hit him? Why?! He doesn't deserve it, he did nothing to deserve it.