I totally get that vibe. I've rebuilt an old farmhouse on my own and it was one of the most exhausting things I've ever done. It got to the point that I could hardly look at it for fear of sinking down furhter so I made the smallest room (2x2 meters) into a refuge from the insanity and I made it picture perfect. So the rest of house was in various stages of demolition and reconstruction but that one room survived through all of it and it really helped me to stay sane. In the end it all worked out but that was an insane amount of work. The worst bit was that all of the floor joists had either given out or were so rotten that they had to be replaced so there was a point when you just had a empty space with the roof on top and some bracing to stop the walls from pushing out. It would have probably been better and faster to knock the whole thing over and start from scratch but I was dead set on keeping the outside without any visible modification other than a single tilt window added in one of the roof surfaces.

After that I've done two more major jobs on other houses but I'm at the end of my enthusiasm for this kind of work.