刚初升高,英语老师让写作文"My best friend",请问该怎么写啊?

Li Yan,my best friend,is my classmate. She has big eyes. Her long hair is often plained.Sweet smile is often on her face,which makes her more lively.
LiNan is very clever.She is good at her school subjects. She has won the school scholarship twice,I always take her as my model in study. She tells me that we should make good use of time.
Li Yan is kind-hearted and is always ready to help others,Any student in my class who has trouble in study likes asking her for help. But she doesn’t like others to praise her, because she thinks what she did is ordinary.
I feel proud to have such a friend