How to write a short message about inviting guests to dinner when children go to college?

Write like this, "Hello, teacher! My child will go to college soon. I have been looking forward to it for nearly twenty years, and now it has finally come true. I stayed with him in primary school, junior high school and university, caring for him and controlling him, but the university didn't have the opportunity to stay with him. I'm afraid he doesn't study hard when he goes to college alone, so I want to make an appointment to ask everyone what our parents should do if their children live on campus. I hope the teacher understands the painstaking efforts of an ambitious child! Thank you! "