I Want To Have a Long Vacation

My little baby is only six months old now. During the last semester, my mother-in-law helped me in my home so I can could go to work.
The new semester will begin but no one is able to help me. So, I want a long vacation to stay at home and take care of my baby. I wish that the headmaster is good-hearted enough to allow me to stay home.

Instead of "Wish" I would use "I hope".

Good Luck.