My sister

I have a sister.
She is 4 years younger than me, thus she is 15 years old.
She is a senior high school student.
The school she goes is same to me.
That is near to our house.
There is an elementary school next to my high school, my father  works there.
She always imitates me.
She also plays the electone, she also belomgs to brass band club...
She wants to be a teacher of preschool.
She is taller than me and looks like she is older than me.
Her favorite color is yellow.
During summer vacation, she has club activity almost everyday.
When I saw her life, I yearned for my high school life.