where can i learn more about working on cars?

I'm sure there are schools you can go to depending on how old you are, colleges offer auto classes.

Don't waste your money just hang here on this site and you will learn allot..

I never finished high school and after that I never went to any college, but I fix all problems on my family cars just by reading comments here and watching Youtube videos because I don't make that much money to pay a mechanic.

There is some basics I call it you need to learn about like testing & using with a voltmeters and specialized tools, Get a foundation to build upon. I went to school but I also still learn everyday why you say because as time marches forward so does the Technology, it advances and the tools used to do so, So learning never stops. I would say sure you can learn alot by youtube and sites like this but I do think since your willing to learn, do some of it all, find a local tech school and/or high school classes too, no reason to limit yourself, you never know you may want to continue in this field, a certification or diploma can and will help you with whatever you decide to do your own or others mechanic work.