So I went and booted up my PS3 today, and stared at my game list of around 70 games (some unplayed) and just didn't care to play anything. What do you do when you're just sick of gaming for a while? Read a book?
I often do alternate between games and books. I took about 1.5 years off from gaming mid PS2/Xbox/GCN gen. Didn't play anything, even little fast games like Bejeweled. It helped a lot. You may not need as long a sabbatical as I did, but you may consider taking some time off.
I find television very educating. Every time somebody turns on the set, I go into the other room and read a book. Groucho Marx