As others have asked, do you really want to be your mother's carer and would you be any good at it? It's not a task to be undertaken lightly, especially as it will involve you giving up your job and moving back home at the age of 56.
It would be best if you could persuade your mother to move to an assisted living flat with a warden etc. I'm sure her council would be amenable to this as it would free-up a much needed 3-bedroom house for a family.
Static caravan purchase is it worth buying
NHS U turn on trans terminology