How to write the certificate that the school agrees to student visa immigration?

1. My parents divorced and have been living in school (now I graduated from senior two, divorced for five or six years), and my grades declined because no one took care of me. After my parents divorced, my mother went abroad and was always raised by my grandmother. 3. The daughter lacks care, the father never raises her, doesn't care about her life and study, and doesn't attend parent-teacher conferences. Now grandma is too old to take care of her, and she hopes to immigrate to her mother. 5. The school allows students to apply for visas and immigrate.