Where do we start?

My mom has been living with my husband & I for years. She has no assets, just her Social Security check (approximately $1100.00 monthly). She is 94 and in generally good health, but has macular degeneration in both eyes, early stage dementia, and is completely dependent on us for all aspects of her care. She is a fall risk. 3 falls in the past year resulting in a broken shoulder & compression fractures in L1&L2 when she attempts to get herself to the bathroom unassisted during the night. We both work full-time jobs, have not slept thru the night since November and are basically just running ourselves into the ground. We are not wealthy people. We both work because we have to work. My mother's ss $ has been used by the household to pay for food, clothing, housing/housing expenses. We have never created any type of documents, but I am on my mom's checking account and she has willingly contributed to the household for close to 10 years. I am an only child, so this is not about sharing with siblings, but more a question about how we go about getting help, (someone to be with her in our home, places we can take her a few days a week, somewhere to take her for overnights if necessary) as much for us as for her. We do not have the financial ability to pay for much. Any feedback will be appreciated. We just want her to be safe, clean, treated with respect and be able to get some rest or simply be able to run errands or go out to eat.