My mom did the same thing.
She said “no more hospitals.”
She died peacefully in her bed with her family around her.
My great-aunt, too. She got tired of going to dialysis four times a week, and when they recommended it go daily, she said no to the whole thing.
She never learned to drive(!?), so she always took the bus. I can’t even imagine the pain and tiredness she went through. Sometimes, enough is enough.