One day at a time is usually what we need to do, but in your case, you are at the one moment at a time.
Prioritize - you need to take care of you first so you can help everyone else. Get the breast issue taken care of - expect the worst - hope for the best. Do what you need to do and keep looking ahead.
Your DH is responsible for getting a job, any job, to help out the family. At one time, my DH was working three jobs one being a cop.
Talk to your martgage company, your creditors, only purchase absloute necessities to survive. You will be amazed at how little you can do with. Don't ruch to file bankruptcy like my DH did. However, we did get to keep our home and two vehicles and we are finally out of the dark. Ours was because of medical bills and no health insurance.
Keep your head up, worry is not a word in the bible, and keep prayer utmost for His will not yours. You are stronger than you think. Godspeed!
I will keep you guys in my thoughts. Hoping for good news and good health!!