I'll add to the corrections ... this sentence is missing something .. "DS5 does say that he is a happier in Ms. W's class."

Also, addressing the principal simply as "Principal," would probably rub me the wrong way if I was the principal.

... I can't wait to see what response they'll have for you. We'll be in your shoes soon so I am getting inspiration from all of you who are a year ahead of us! Good luck!