[Tx Firefighter]

A few hours learning Ohm's Law and how to read a schematic will make a huge difference in your frustration. You might spend a night or two reading up on it. I'm sure Google would turn up some good sights.

I had a one semester class in coollege just dealing with electrical theory and basic wiring. It sucked, sitting through class, but it makes you a ruler when an electrical gremlin pops up.