some choices available.
option 1
go do some qualifications in it. possibly train the next few years, join or start a company go from there.
option 2
try to find a garage that will employ you as a basic. and then train you up. rare as rocking horse poop these kind of situations, but not impossible. down side is you start at the botom and work your way up.
option 3
go into a career that you are qualified for, pick up some tools and spray kit, book on to some courses and train yourself. do it as a hobby to start with, maybe offer services to others on here. and progress form there.
.....
there are wrapping courses that you can go on, to train up as a wrapper could be done over a 6 week period, but there are a lot of people doing it out there. so alot of competition, maybe start there and add to the skills basis over time.
things like mechanics and painting take time to build up the skills required, same as flying and learning to drive. the more practice and time spent behind the wheel the better you get.
what about looking at joining the AA or similiar, don't they train their own mechs up?