I have 5 brothers and sisters but nobody can give me a break.

I have been caring for my dad for the past couple of years. It is now my "job" so I have been told. I don't have any money of my own, but my rent and bills are covered by my Dad for caring for him. Well, I have 5 brothers and sisters who are just too busy to give me time off, exept for one of my sisters. She visits often and really helps out, but I am still here when she does. She says I can take off, but where am I supposed to go without any extra cash. I have a brother who lives in town, but he works 6 days a week. There are 3 other people in their house but no one can help. The others brothers and sisters come to visit my Dad often but no one offers to help. I do have it pretty easy though because my 90 yr old father can still get around a little. He can eat and use the bathroom hinself but barely. When I talk of having a break, they all have quick answers. The only time I can go anywhere is when I go grocery shopping, the doctors, or for an hour or two, but this is only on a month or 2 basis. Sometimes I regret my dad, and sometimes I want to just leave when my other siblings vist, but like I said, I have no money of my own. I am so sick of staring at these walls! Help!