Help! Single mother facing eviction!

I have been disabled for almost 2 yrs now, diagnosed with Trigeminal Neuralgia and permanent nerve damage to my spinal cord due to a vehicle accident. I did not qualify for insurance, have been living on $850/mth. trying to support my son and I. I always try to ensure I pay something on all my bills, at this point I have not been disconnected. But unfortunately my rent exceeds what I am able to pay and have been slowly falling farther behind. I know currently owe my landlady just over $4000.00. My Eviction notice is on my doorstep. I have no family, I'm an only child, I have lost my parents and any close family. This is one of my last options. Any help would be greatly appreciated. Peace