When do you know....?

At 71 I still get a sense of satisfaction in doing all my own repairs and upgrades but have also learned my limitations. A good example was when I decided to drywall and paint my 24 X 36 garage with 10ft ceilings. It took me less than day to realize that was not a good idea and I hated it. I finished but it took almost 2 weeks instead of the 4 days that I estimated. No more drywall for me. I do learn however. I recently had new gutters installed and contracted it out instead of being stubborn and doing it myself. It felt weird having someone else working on my house but they did in less than 4 hours what would have taken me a couple of days to complete.
On my coach I still do everything such as installing the Trav'ler, rear track bar, oil changes, base plate and wiring on the new toad, etc. I am slower than I was 10 or 15 years ago but it still feels good to do it myself.