I cannot stand my younger sister?

Give her a taste of her own medicine. I have a litte 4 year old sister. She has two teenage (14, 15) sisters so she acts like a teenager. She really mean to me to. Telling me im not special, the she doesn't love me, tells on me allllll the time. I just walk away, or when your sisters says somthing mean do somthing twice as mean back. Taste of her own medicine. You could always go to our mom to. Tell her whats going on. e-mail your question to your mom or somthing.