I hear ya brother.
Why waste all that time at college getting qualifications when all you had to do was spend 5 minutes watching a video on YouTube.
If only it was that easy, right?
I'm 18th edition and have been fixing domestic appliances for 30+years.
Been training the new generation of engineers for the last 11 years.
I'm confident in any appliance/electrical work but that's about it.
I don't touch anything to do with wood, plumbing or bricks and detest decorating...