Stop in for a cup of coffee

Rainy Day Auto said
If I can do it, really, anyone can.

I am probably the last person on the planet who should be working on cars because I don't really fit the typical description

From your accounts you seem to do a great job.

You have a larger car knowledge base than I do.

You've had far more wrench turning training than I ever had.

Don't short yourself ( no pun intended) many would agree here, with your time and experience you've turned into a great buyer of parts and a wrench.