Please help me not be evicted

I was diagnosed with breast cancer in 2012.  Until this year, with the help of my family, I have managed to get by. 2017 has been a struggle. My doctor won't release me to work while I am getting chemo treatments and I have very little money coming in.   I am currently $2000 behind on my rent and Decembre's will be due next Friday.  I haven't been able to find anywhere to live with 2 bedrooms that is cheaper than where I am.  Today in the mail I received a letter from my landlord giving me 7 days to pay what I owe him or he will start the eviction process.  Please consider helping me. This is a very difficult thing to do, and I have some hard decisions facing me.  Ultimately I would like to stay in this area to be close to 2 of my 3 children. and stay with my current doctors.  For right now I just hope to get through to the end of the year and get work done on my car in case I need to move back home.  Thank you .