Question about apple music and multiple devices.

Hey all,
I recently started using apple music and have an IPhone 5S and IPad Mini 2. How do I get my music loves and catigories and such to sync between devices? It doesn't seem to have done this since I updated my IPad, added catigoies and loves, then updated my phone and it wanted me to do the same thing again. How do I fix this?
Thanks for any help! :)