I went to college when I was 14 for computer networking. Got my “hardship” license to commute when I was 15. I never imagined how networking would have anything to do with auto but a lot of what I learned I use today. Construction, plumbing, electrical, welding, audio etc. They all have something to add to the automotive field. A/V is what I do to support myself and family and I’ve never worked in the auto industry but that didn’t keep me from learning how to paint, weld, rebuild engines, tune efi etc. If it’s what you really want to do, it just takes ambition. I grew up with chiltons and haynes manuals also