I have lots of common sense and it tells me not to trust most things I try and fix.!
At school we had an obligation to study a practical subject; woodwork, metalwork , or engineering drawing for O Level/CSE. I was so bad at them all I was advised to take an academic subject instead as I was certain to fail any of the three.
I say this with great frustration, I’d like to be able to repair stuff and I can often see how, in theory, to do it but as soon as I am hands on it all goes horribly wrong. Same applies to art, absolutely zero aptitude.