Breast Cancer stage 4

My mother has stage 4 breast cancer. Her liver is covered with Tumors  and both lungs- pleura has cancer. She can't keep up with hospital,  medicines and her rent on  just Disability.   Stress speeds up the cancer progression.  She is growing very tired .   In 2009 cancer progressed to  her left hip and femur. They replaced both.  In May of this year it has progressed to Liver and Lungs.   My mom will be on chemo the rest of her life.  The last chemo Affinitor failed and trying to find a chemo that will stabalize the liver.  The Scan results stated too many lesions to count on her liver.  ):
She first was diagnosed with Breast Cancer in December 10,  1998...I was 6 years old..  I am 22 and now it is end stage.  She is very very tired.  I would like to do more but Medical bills and hospital bills make  it rough. 
  Anything will help but above all prayers and sharing this message with your friends will be the best possible blessing we could have.
Thank you so much!!
Morgan