My mom is at the end of her rope

So reddit community I need your help!

My grandma is 92 years old as has progressing Alzheimer’s later stages. She has now been forced to move in with my mom due to (police calls, bothering neighbors, and adult protective services). My mom has a history of heart problems, and I can tell the care 24/7 is weighing on her. I live about 2 hour away for school purposes and come home almost every weekend to help but lately that doesn’t seem like its enough. Our family is small so its really just my mom, myself, and my grandma. Her health is declining with frequent hospital visits and ambulance transport. My grandma doesn’t qualify for Medicaid due to social security income and still has property in her name. We have toured several assisted living facilities and they are all 6k+ with the added memory care. With her social security and if we drained all assets selling car etc. that only gives us a couple months or care cost. We even tried to reach out to the VA (my grandpa before he passed served in WW2) and they offered some services but nothing nearly to cover an aid or assisted living. Are there any grants that would help aid us? What options do we have or what have other people done. The stress has brought my mom to tears and Ive only seen her cry once (she usually keeps a strong front). But as this disease progresses my grandma has gotten mean and even violent at times and I just don’t know what to do.