At one time I did everything on my vehicals. Replaced engines, transmissions and axle gears.
With age and a higher income, I started buying new cars and I refuse to work on them. I'll add windshield washer fluid and that's it!
I still do a lot of home owner stuff. Tomorrow I have to replace an outside faucet and an inside valve. My only problem with doing this is I'm afraid of setting the house on fire. Very tight space to work in with a torch.
DJK