Why does Apple Music say that my student email is in use when trying to switch to a student account? I'm on the individual Subscription for Apple music right now. When I try switching to a student account (I'm eligible), it tells me that my student email is still in use. I might have used that email before, because a few months ago I got a new iPhone. 

If I cancel my individual subscription and then try to sign into my student email, will I lose all my music?
It sounds like you have two Apple ID’s. Close the one with your student account and add/change the email on your personal account. Use “forgot password” with your student email to get into your student account if you don’t know the password.

BTW, r/AppleMusic says you have 90 days to pause a subscription without losing your data:


  Your library is kept on the server for 90 days - meaning, as long as
  you restart your Apple Music 90 days of the previous subscription
  coming to an end, you'll get all your library back.