For years, I saved articles on how to determine whether an elderly person needs more help or a change of living situation. But when the time came to intervene with my own mother -- widowed and living alone -- I was utterly unprepared for the emotions that flared and the strain it put on our relationship.
Other countries offer their working parents family and medical leave that is of longer duration and at least partially paid. The U.S. is one of the wealthiest countries in the world, yet we are amongst the 112 countries (out of 145) that do not provide paid leave away from work to care for adult family members.
Leave home. I don't care if you borrow a friend's empty kitchen while she's away for the weekend, sign up for a writing retreat, or rent a motel room, but find a way to get out of your house. Your family will survive and you will come to embrace this time, making the almighty leap between caretaker and woman writer easier.