Is there any information on how my 56-year-old old sibling with Alzheimer's can get assistance in PA?

Is there any information on how a sibling caring for a 56 yr old sibling with Alzheimer can get assistance in PA? I see selections for parents and friends but nothing on siblings who care for there siblings. My family was paying a friend to care for my sibling for 8 hours while I was at work but I recently was downsized from my job and now they say that they can't pay me anything for caregiving because there is nothing in SSN forms that allows a sibling to be compensated for 24/7 care. So they will pay half the rent and half the utilities but nothing else.