Unless you're one of the lucky few who are selected to take the ATSAT via job fairs (which aren't held often), you'd have to go back to school for the CTI degree. I graduated ERAU with a BSAS, and transferred enough credits into Mt. SAC to be able to graduate in a single semester. It did mean a move to LA, though.
Good luck with everything if you decide to go for it. I'll tell you one thing though, with the FAA's pay cut and strongarm management techniques, there's one more opening for someone willing to put up with it. God knows I'm telling them to take a hike.