как изменить аккаунт apple в apple music? how can i change account apple in apple music?

I have a problem. I want to change the subscription to a student one, but I can't. I have a suggestion that this is because the apple id is not on the university's cooperative mail, but on a regular one, so I want to change the mail in apple music to a student one. Can I do this? Or is the problem different? And if I change the mail address, will anything disappear from the iPhone? Help!