Reinvention or Revolution?

I'm always reevaluating my life and everything in it. Changing what needs some shaking up, keeping some things constant, and always on the look out for new things. I guess this need to revamp is inborn for the most part. Lord knows if we just stayed constant with everything and felt no need for change we would still be in the stone age. Really it's pretty healthy, but at the same time I find myself questioning things I never used to doubt before; things that I really wish I could still believe in.

But if I'm not getting everything I need out of something, why stay with it?