"iCloud Music Library can't be turned on because this device is already associated with another Apple ID"
So i decided to create another account on my phone and try the 3 month free on apple music, then i log in back to my original account, when i tried to turn on my icloud music library, it said like in the photo that i screen-shot. So i think maybe if i delete the new account, it will come back to normal and I was wrong. So what can i do beside waiting for 85 days like an idiot and could not add any music? I have to create a new account for some reasons so don’t ask me why did i do that, it’s a long story :)
[Re-Titled by Moderator]
iPhone 7