Gremlins in my electrical system?

I try to think of electricty as a monster that just wants to find ground. WE as an inteligent species figured out that if you put devices in between the source and ground you can make things work(or not work):) I know it gets a little more complicated than that but, Most problems are shorts or opens caused by shorts......just gotta find them. Try taking it in small sections. As far as not understanding the meter, Just make sure your on the correct setting for whatever your doing and try to get someone to assist and teach you the basics. I have been using a fluke digital with a bar graph for analog type signals for the past 20yrs and it's never failed me except for a dead battery once in awhile. GOOD LUCK with you electrical issues.