Personally, I would sell now. What you plan to do might not suit someone who buys the house when you’re ‘gone’.
I imagine, but I could be wrong so pardon me for saying so, that you’re of retirement age and live alone…….if that’s the case, why live in what sounds like a large house that’s causing you stress just now when you could sell and move somewhere more manageable although I wouldn’t go for assisted living accommodation as there can be horrendous cost when a resident dies but I’m sure another GNetter will comment differently.
I would be inclined to look for a bungalow that’s causing requires little to no work where I could relax and live out my days.