Re: What do you do when you've lost all desire
Not everyone was born to be a guitarist. Try bass, drums, piano, or some other instrument.
Listen to non-guitar music for a while. Big Band, Classical (Orchestra, string quartet, not Segovia cuz he'll just make it worse), or listen to stuff where the guitar is not a featured instrument like Funk or late '80s New Wave, or electronica. Maybe some Nine Inch Nails as well (though he does use guitar).