I live in a very rural area and the office of the aging is the place to go for lots of answers. There are also funds available to help with your moms care.
You need to take a break too. The office of the aging can help arrange for in home care. So many people are not aware of the funds and resources available.
Sending you hugs and you are doing a wonderful thing by taking care of your mom. It is never easy to be the adult child.