I'm an automotive technician now. I have 8-9 years experience. I grew up racing and working on cars, my Dad and Grandfather were both technicians. I have a good mechanical aptitude which makes this job a good fit for me and in the grand scheme of things I can't think of anything else I'd want to do on a daily basis. In the last 4-5 years I decided to take this from a job to a career, I invested in more tools and will continue to do that, I passed 11 ASE tests, took Mazda's classes to be Mazda Certified, and continue to take GM classes to stay certified in their cars. I started out changing oil and working my way up, though I think it's easier for many people to go to school. It will never make me rich but it's an honest days work.
I started out in high taking Electrical Tech in vocational school, and went through a 4 year aprenticeship program to be an electrician. I worked construction, mainly commercial buildings. I hated the job. You don't realize how much it sucks to work without electricity, I put up parking lot lights in the dead of winter and the heat of summer. I dug trenches to bury cable, I bent and installed many feet of conduit in all sizes up to 4", hung countless light fixtures, installed huge sections of switchgear to power large buildings. I had frostbite, severe sunburn, and been electricuted doing that job. I don't miss it in the least.