A lot of us here aren't mechanics either. With the help of the how-to's, us "non automotive technicians" are learning to do more and more to our cars. My ride hasn't been to the stealership once, thanks to the CEG. All work is done by me and my husband. Sometimes it takes longer than it should but, we're getting it.
Starting out with plugs and wires...it will take you some time but when you're done you will feel good that you did it yourself. Plus, you'll save a bunch of money.
Have some of faith in yourself. You can do this!
Also, tell people where you're located, you got lots of offers of help. Take advantage of the fact that people here will help you.
All work is done by me and my husband. Sometimes it takes longer than it should but, we're getting it. 
