Ramblings of a lost caregiver

I just joined this community so therefore I am sure that most have gone through what I am experiencing at this moment. (Sorry for the spelling)....

I am a single mother who took a lay off(strange in this day and age) to take care of my 64 yr old mother who is now in the final stage of liver failure. Her wish is to die at home. I am an only child so there is not a support network around me other than my 3 children. I know that this is taking such a huge toll on them as well. I was suppose to get married again in April this next year but that has now taken a turn for the worse. He called it quits today. He was taking care of my mother at night while I took care of her during the day. He also has a disease but I will save that for another rambling. It is almost 1:00 a.m. my time and I have been up since 12:00 noon. I went to bed at 5:00 a.m. this morning. I have been kicked (hard) scratch and pinched by my mom today. She can't stand for very long, she fights the meds that she has been given to make her sleep, she has kicked the bed rails off of her bed, she won't drink, she won't eat and she strikes out at the one person that is trying to help her....ME...I am so frustrated, so angry...and am so lost...and am so tired. I am trying to keep some sembelance(sp) of order to my household. Now I am alone in this with her and I feel like I am sinking. I need someone to talk to.
She is dieing in front of my eyes and there is nothing I can do. SHE WON'T LET ME HELP HER!!! She cries out and every time I try to help her she shoves me away...I need to talk to someone......