My first year in college I was playing electric guitar about 1 hour and a half a day and was really improving. By the end of that year I got tired, I think. It seemed like I didn't have any creativity left in me.

I then decided to stop the electric guitar for a while and concentrate on acoustic. I learn some classical piece, fingerpicking. I lost a lot of electric skilld but gain new ones on acoustic. Only after 6 months did I took my electric back and was inspired all over again. I started mixing acoustic/electric to created much better songs.

I now have a synthesizer and when I'm tired of guitar I play a little of that and come back later. It helps a lot.

Maybe it's because I suck so much at keyboard that when I go back to the guitar I SEEM to play well :)