Mechanical or body repairs? What sort of repairs are you interested in - engine, gearbox, brakes, suspension?
Without any experience and a decent tool kit, you might struggle. Many jobs on cars require specialist tools or diagnostic tools - expensive for one-off use! In any case, once you have, for example, replaced some brake pads, that’s it until they need replacing again unless you go over the same things yourself.
I'd suggest looking at going on some car maintenance classes in evening classes if they do any such things near you. Although you said you don’t want to, you can’t beat the satisfaction of doing something on your own cars. Start with simple stuff like routine servicing, Oil and filter changes, air filters, checking brakes and steering joints, topping up fluid levels etc.
