I'm sorry that you're going through this. I don't have any knowledge of what you are going through, but I do have a lot of experience working for people that have had to hire me to fix things for them around their homes that they used to do all the time themselves.
I know it bothers them to spend money to have it done, but I respect the fact that they still want it done regardless of how their health is. A lot of the time I'm told by these clients is how important it is to them that the house is in good condition for their wife or their kids.
By the time I'm done, we've become friends and I get texts from them afterwords to keep in touch and how they are looking forward to me coming back and doing more things for them.
From what I've experienced, my first day there is usually a little awkward, but once things start getting done, and the client is happy with the results, the negative feelings about having to hire me goes away.
When life is out of your hands, all you can do is make the best of the ride that you are on.