I agree with all of the suggestions and recommendations that everyone has made up to this point.  If you don't have a person that you can mentor to put a wrench to an actual car I have a couple of suggestions.  1) Ask around at a garage to see you can job shadow them for a a few days until they get to know you.  2) If you have a car that you can work on, while you are putting a wrench to the car... use your cell phone to video what you are doing so that you can figure out how to put it back together.  3) I think it is very important to learn how to detail a car.  There are a number of videos on You Tube that can help you.  Just remember that you are starting out.  Ask a bunch of questions and then go out to find the answer.  I was blessed to have a Dad and Grandfather that helped me learn to work on vehicles.  Don't let it intimidate you.  ... View more