So, I'm a power engineer so I can relate a bit to this...
Some of the more senior posters probably remember I struggled with alcoholism for a good deal of years, god bless him my dad tried to teach me all this but I was too hungover or cut to care. Well, since becoming sober I've paid the tab in my own embarrassment. Most work such as replacing a pump is fairly intuitive for someone with my knowledge, but actually doing the work sometimes there are things in practice that you won't know how to do until you struggle.
My dad, man. it's unbelievable. He started as a power engineer, and eventually climbed high enough to become a director (of something) at Telus. There was a good stretch from 2003-09 where in the middle of being promoted 3 or 4 times, he: renovated a house, built onto said house to expand floorplan by 33%, moved his mum into the house, dealt with my bullshit, etc.
No idea how the man did it, and every year I grow older I am more in awe.