Dan...I'm with you. There are a few things I don't attempt if I'm not sure about something. One is electrical stuff....I know how to do basic stuff, but if I'm unsure, I get my buddy over to do it.
The other thing is brakes on the car....I keep getting told they are easy, but until I learn how to do it properly, I'm not putting me or my family in jeopardy to save a few bucks.