Keeping busy is the key to me for having a healthy productive life. I now give myself a project every day, and when it's over I relax. I don't have to report to anyone but myself. Sometimes my projects are simple, sometimes not so simple.
If you're feeling stuck right now, I suggest trying many different things to see what works. My favorite -- laughing. A lot. All the time If it doesn't work to get you moving, at least you're having fun.