Every time circumstances cause me to break for even a day or two I return highly motivated, feeling good and creative.
Since you asked the question, I think you have never taken a break. IMO, you really need to do this. It's not good to go OCD on stuff! Maybe not 2 weeks. Just try 2 days. You'll see what I mean.
Also consider the fate of Leona Boyd, the renowned classical guitarist. She literally wore her muscle response out from constant playing and rehearsing. I was reading this in one of the recent guitar mags (Guitar World or Guitar Player if you want to look it up for details). Her muscles just stopped responding. She has to relearn everything and is even needing to use a flatpick because she can't finger pick any more.
This is good food for thought for anyone else out there, too.
...so ever since then, I always hang on to the buckle.