Before going down

I was about to get into bed until my sister ran into my room unexpectedly, I looked at her annoyed, she always does this type of stuff "what do you want, Mary?" I said to her, "guess what" Mary said, whenever she said that I get so annoyed, whenever she said this type of stuff, it that means mom and dad get her something new or are doing something with her, "what?" I said annoyed, "mommy get me a new stuffy" Mary said, Mary had about forty stuffed animals, I only had one it was from my grandma before she died she gave it to me, of course I hid it away from Mary she always wants everything I have. After Mary left I finally laid down in my new bed, not knowing that would be my worst mistake in my life.