Couldn't See The Obvious

Nobody Needs Me in their lives. Why do I continue on to live in this Hell? Is it because My One Friend Would Worry About Me? One Person Changes Nothing. My Mother Expects me To be "Lil' Miss Perfect." She thinks Writing/Journaling is a waste of time.
I have to do all the chores in the house, While my Mother and My Older Sister sit on their ass's and watch tv or play video games. My Mom absolutely adores my Older Sister, Trinity. Probably because she's A lot more beautiful than me. With her Elbow height, Brown, Wavy hair and her Green Eyes. She, apparently, has the best style too. She always wears pink clothes and gets all the really expensive stuff. I get some expensive stuff... I guess. She's a spoiled brat, whenever she doesn't get what she wants, she throws a little fit, which is every single day. There fore, Everyone does whatever she wants.
My Brother died from Hanging himself about 6 years ago. His name was Isaiah. He died at 12 years old. I always hear noises in my room and a couple of times, I actually thought I saw him. I told my mom but of course she didn't think anything of it.
Also, My Dad died when I was 5 years old, in a car accident. The car flipped over, seriously, I'm not lying, I still have the scar on my back to prove it. Well I cant exactly... Show you.
I met a boy named Oliver, opened the door when I was trying to then made me fall on my butt. We became... Well we knew eachother. He calls me Cassie, it's special to me because he's the only one who doesn't say my name with anger or disappointment besides My Friends and my teacher. My Teacher is really nice and he is always proud of me because I actually try to get good grades in this class.