If you want to stick to the mechanical side of things but are getting detered by the car side of things etc....do what i did and become a Fitter and Turner / Toolmaker. Car's seem very very simple in comparison to some of the work i've done. So many varieties in the trade also, alot of different places you can go where you have more than enough skills to cater for. For example, I got the experience at Adelaide Brighton Cement with Very heavy industrial equipment with hydraulics, rebuilding gearboxes etc..then moved onto Machining as a toolmaker using very very tight tolerances with CNC mills and wire EDW machines doing all the programming on CAD, Edgecam on the computer. Also have done endless amounts of welding, MIG, TIG, ARC, Braising etc. Custom Manufacturing of all sorts of machines etc on a manual Mill and Lathe. Trust me, car's seem very basic in comparison when it's all nuts and bolts. Now i've moved onto supervising all the maintenance at an Earthmoving Company Maintaining all their equipment ranging from company cars to HUGE earthmoving equipment with excellent pay...I dont regret a thing about my trade. When i finished my Apprentiship i moved onto carpentry, plumbing and Roofing but still had my trade to fall back on. Food for Thought. Whatever trade you choose the skills are for life dude....definetly do an apprentiship..good luck.