I do about 50%.
The rest is left till one of my sons comes to help....or yes get someone in if it is in need very quickly.
I do hate to ask my boys because they are very busy.
Over the years I have had to teach myself, 'how' to use a saw-drill-high pressure hose and paint to a good standard.
I also have used Youtube to teach me a lot.
If you watch it over and over, then do one step at a time, you can get there.
I also know how to make a small retaining wall with bricks and cement...That is not easy, but we got there in the end.