Who writes the letter?

Hello Max,
My name is Helen and I'm nine years old. I go to Greenwood School. My favourite school subject is IT. I want to be a computer programmer. I'm also fond of Maths and English. My school day starts at 9.00. I have a lunch break from 11.30 to 12.30 every day. My favourite day at school is Thursday. I have IT, Maths and English on this day.
I'm sorry but I have to go to my music class. Please write soon and tell me about your school.
Bye,
Helen