I'm Unstoppable

The other day I was trotting across the sidewalk and found a little book with two pages, but it looks like most of the pages have been ripped out. This was what the first page said:

I was born a legend. I knew I was too. I sat there in my mother's arms on the hospital bed, thinking to myself 'I'm a legend. I was born to change this world.' The world sees me as death, but I'm just trying to help them. When I give a waiter a tip, they give the money to somebody else. When I give my friends presents, they burn them. I broke my leg, everyone sat there and watched me suffer. And I'm still alive and still thinking I'm a legend. I'm unstoppable, whatever happens to me I'll keep dreaming.
They've shown me nothing but hate, but I don't need them. I don't hate anyone—I point out everyone's ignorance as I am perfect, but their faces are filled the pimples and dents. My bones are stiff, my muscles are tight and strong. My lungs have a great capacity. I'll keep running a track at school until I drop dead, and they encourage me. They whisper in their ears they want me to die. But what they say doesn't affect me. I will stare into your eyes until they're bloodshot. My eyes used to be a dark blue, but now they're flat red. Whenever I walk into a room, everyone stares at me until I run off. But I don't run off. I stay there until they run off.
I know I am here with you right now. I am behind you. I am in front of you. I am right beside you. I will always be with you, my dear. I will always love you, and I will love anyone who hates me. And I'm following your eyes. Staring into them.
My face is beautiful. It's covered in mold, earthworms have dug into my flesh because my skin is filled with fat and diseases. My hair goes past my eyes, it's pure black with red highlights. I am a female, and have the world's best fiancé, and we are getting married in 10BC. Anyways, that's my diary entry to introduce myself. Thank you so much!

This scared me in so many ways. Who was this person? Why was this so old? I flipped to the next page in intrigue. This is what it said:

Hello. I am to be completely disciplined today. I am not to speak. I am not to sleep. I am not to eat. I am not to write. I am not to go outside. I am not allowed to die. I am not allowed to live. I am not allowed to hiss. I am not allowed to whisper. I am not allowed to open my mouth. I am not allowed to choke myself. The only verb I am capable of is writing. The only property I can carry is having thoughts.
My sisssster has got me grounded. Oh well, I'll survive the day.

That was the end. Then I saw a bit of writing on the back from the light paper.. it looked like its bottom had been ripped I turned the page and saw something...

YOU'RE GROUNDED!

I'm grounded? What did that mean? I was so confused... I didn't know what to do... then I noticed a little strip of paper in the bush where I picked up the book.. this must be the bottom of the page...

I picked it up and closed my eyes and turned it around so I wouldn't see the text yet. I was scared. I opened them, and opened the book. I put the strip face-down on the last page and realized it WAS the bottom..