yeah i guess you need to maybe take a break from ayu's music or so ...
relax, listen to other artiste's songs for a few weeks.. and then go back to listening to ayu's music. Maybe the ayu feeling will be back.
or you can try listening to different ayu songs or songs by her which u have never heard before. I do that sometimes when i'm sick of listening to her music in a whole day
just a suggestion..