Been there and done that. The best thing is that you are doing it at a time when it's a voluntary choice and not a mandatory one.
Do not make the assumption that Assisted Living is not an option. I don't know the programs out there, but I know that my parents were among the only private pay residents at the first Assisted Living facility they were in. There are government resources available. Absent that, I am amazed at the abundance of resources available through our local council on aging that others are able to obtain, including in home assistance.
If you don't grow where you're planted, you'll never BLOOM - Will Rogers