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How to send this short message to the teacher?

Dear teacher, hello, I'm XXX. Recently, due to psychological stress, palpitation and insomnia. Sometimes I can't fall asleep until 5 am, and I have to get up early for class at 6 am. My physical and mental discomfort makes my current learning efficiency very unsatisfactory! Therefore, I want to take X days off to adjust my status, and I will definitely make up my lost homework after returning to school. I hope the teacher can approve my request! ! !

I am here to convey

welcome