My Mother has Rhabdomyosarcoma

I have no idea even where to begin here...I guess I'll just spill my guts and let it all out. My Mother has a rare cancer usually found in Children or young Adults, she is 77 years of age and has Rhabdomyosarcoma. It's as big as a grapefruit and started growing on her groin then into her stomach. The Doctor spoke with my sister who lives in Victoria and had told my sister my Mother had two days to live, that was nine days ago. my sister on hearing this rushed here to NSW to see her mother, having a young family my sister couldnt stay long, and is now back home, she will never see her mother alive again. Although being told what she has and what will happen, both my Mother and Father believe Mum is going home. My Father is 80 years old and a stroke victim, and cant look after himself let alone look after Mum, yet he hasnt left her side since she has been in Hospital.
He sleeps in a chair beside her. Our family hadnt spoke to eachother for years until Mum was put in Hospital with this cancer, we have all rallied around her and put the past in the past, except for Mum, even on her death bed she is very cruel. Dont get me wrong, I'd shag the Pope if I thought it would cure her. Dad has no funeral plans in place and had asked me to phone around and see what the costs are, then after doing this he didnt want to know about it, as if he had turned himself off to the real world. This is all new to me, but cancer sucks big time. you see or hear it happen to others yet it only seems to hit home when it's one of your own. Dad has asked what will happen to him when Mum passes, then each time you talk to him he has changed his mind.
I feel absolutely terrible knowing that I can not do a thing. I dont even know what will happen to dad as he too is set in his ways. The food at the Hospital is shit, the service is shit, the doctor is shit, in fact the thought of losing my Mum is shit.