Baby MaMa Motivation

OMG!!! I have been off work for two weeks and now that I am back I am soooooo over it!! Getting up in the morning with three kids is not fun. I know some people think "oh you should be thankful for another day" yea I am thankful but not loving it. Remember ladies, my husband works offshore and is gone for 14 days every single month!! I am a single mom half the time. It is chaos and I am exhausted. I need to be a stay at home mom but cant afford to be one. How do single moms do it? How can I make my energy last all day?? How can I manage a home, kids, work, and marriage when all I want to do is sleep!! Ugh HELP!!