During this time you can be put through a lot of stress. This needs to be delt with or it can cost you a lot more. First of all make sure you get sleep. Rest will help you think clearly. Make sure you are eating alright and healthy. A vehicle can not run on empty, and neither can you. When you get a second, do a little exercise. My best ideas came from a long walk, yours can to. Plus walking will help you sleep better.
Watch the stress, A heart attack or stroke will do you no good.