My Younger Sister

I want to talk about something happened on my younger sister. My younger sister, Kelly, is eight years old now, and I am already twenty. However, we have arguments all the time. And both my parents have wrong attitudes to her. Therefore, my younger sister always does things in willful and impolite ways.
She has no sense of wrong and right in many ways. For example, she would say something impolite to my grandmother, such as: Grandmother, you smell stinking! Or she might clip the food in others bowl if she wanted it. And she would argue with my parents very loudly.
She is also obstinate. Once she used the filthy langue to me, and I was very angry with her so impolite behavior, so I decided to ask her say sorry to me. However, instead of saying sorry to me, she gave me a disdainful look. Then, I asked her if her school teacher taught her this thing; and if not, that means she did not know the meaning of her textbooks and what her teacher taught her. And I punished her to copy her textbook. Although I had decided to punish her, she did not think she was wrong.
She is favored by my parents and relations. So she always does everything as she wants; in other words, she is very selfish. She never thinks about others. She would eat all the dishes she loved even though my parents haven’t eaten dinner. She would ask my parents give her everything she wants and never thinks about how toilsome my parents earned money.
I don’t know how to teach my younger sister, and I don’t know how to get along with her either. I might be tougher, but all I did is for her good. She is my youngest sister; I have both pity and expectation on her, but there are too many things that I cannot change by myself and she is still doing things unscrupulously.

(328 Words)