<human>: Ok so basically to keep this short my mom has cancer. She isn't working. We live together in a house with my grandmother (65f) and my sister (13f).

My mom use to take care of the majority of the bills. But now that she's out of work my grandmother and I have been splitting them. My grandmother earlier this month gave her 700 and I gave her 500. 

The bills still aren't covered and my grandmother has basically gone through all her money for the month. My money will have to cover everything else. 

Which of course I'm willing to do but I'm basically going through my entire savings to move out and go back to school. My grandmother gets significantly more than I do so it's frustrating. 

Today while I was in the car with her she was basically complaining and going through a whole woe is me thing about why she didn't have any money. She basically said that her parents tricked her into taking the responsibility for a 60k loan that she's still paying off and while I agree that's fucked up. It doesn't excuse the fact that she's not helping out now when her payments on that loan are $450 a month. But she was crying and stuff and made me feel guilty and bad.

We still have the rent due, car payments and insurance, not to mention just daily things to live. She's addicted to gambling and it annoys me that she's just going through all her money and not helping us out especially when she lives with us. 

Am I wrong to be irritated?

Give me a shortened version of the text
<bot>: Mom is sick with cancer can't work. My grandmother and I are going halves on bills. She's not stepping up. Do I have the right to be frustrated?