No Longer Wanted, I Left Them Hanging
Once, I was their princess. And then Kylee showed up. Having been in the foster system the majority of her childhood, my parents treated her like a charity case and gave her everything. At 13 years old, Kylee was adopted. Then the "accidents" started happening. Kylee would be walking past me and would suddenly fall over. "Oh, Mom! Sarah didn't mean it! Shes just having a hard time adjusting to her new sister!" Eventually, her little accusations turned into straight out bullying and, well, I'm sure you can figure out the rest.
I did my best to ignore Kylee. I got a job as early as the law would allow. I saved my money. I got the best grades in school, becoming the class valedictorian. My parents didn't notice, though. They were too busy playing into Kylee's 5-year-long pity party.
Don't worry, though. Soon I'll be gone to Harvard and you can have the happy family you wanted. I don't need you, anyways.