Take it one day at a time. Tomorrow is a new day. Do what ever you have to do to get things working for YOUR family.
There is no rules, what worked for us may not work for you. Make your own rules as you go.
Do you have a friend of sibling you can inlist help from? Anyone? Failing that tell you DH to man up, he needs to help you or he may find himself on his own with the boys. That's the gods honest truth. Multi parents have a 50% chance of separation & higher chance of PND.