Mother Fighting Cancer Round 2

In August of 2016, I received terrifying news that shook my whole world. I was diagnosed with BRCA1 stage two breast cancer. Basically,  protein that is supposed to repair damaged DNA to produce cells doesn't and tumors form. Full of mixed emotions, my main worry was for my four kids. My eldest in first grade, my youngest wasn't even a year old and I their only provider. I am the only person they have. I went through 2 surgeries, 18 sessions of chemotherapy and 30 days of radiation. Not only was the treatment terrible, in the process I lost my job and became homeless. A year of fighting the toughest battle I ever faced, it was finally over. I had BEAT CANCER! But 6 months later when things were looking up, I have a job and a place to stay. I received news no one wants to here, it had returned. Doctors say this time my only option is to do a double mastectomy as soon as possible. Unfortuntely, my insurance won't cover the $4000 procedure. I will need to pay $2000 upfront and the rest I am able to do in payments. Currently working a full-time for minimum wage living from paycheck to paycheck. I wouldn't be able to save the money in time. I am asking for help! Help to end this nightmare and help for my children to not loose there mother.