I know, a little late in the day for such a tip, but nevertheless...try it! I know that sometimes I think that what I need is a little rest- afterall, my body has been working hard/I've had late nights/I was on my feet all day/my workout was extra strenuous/etc. However I know from personal experience that when I do decide to let myself "rest", it does not really feel rejuvenating...it makes me feel like a slob!
Now quickly I will make a disclaimer and say that you should listen to your body and rest when you really need it. That being said, you probably don't need to rest all day like you may be tempted to do. I know it seems like taking a day to just stay in sweats and craft or read or whatnot may seem like just the thing to get you in gear again (you deserve it afterall, right?) but I promise it isn't! Get up, get dressed and go for a walk or a bike ride. Find someone to serve. Do something productive! I promise that you will feel better when you have done your hair and have on real clothes and are out about somewhere. :)
It isn't too late to do it today...go for it!