Use the time to recharge and let your ideas settle down. Stress can deplete our energies, but it does so in an unproductive way. Let your mind get some rest so you can be productive later and without the noise of ansiety. Don't know if you are religious or something, but you can also take this to God in prayer. It humbles us to remember we cannot do everything all the time, and that we must ask for His aid too. He is the one Who can stop any storm, and what are our stressed out minds if not a storm inside of us?