I'd suggest figuring out your local USAC, or other licensing organization and getting in touch with a few racing teams in the area. I would think I don't know what it is like in GA/FL, but here in OR there are a few weeknight races for most of the summer that are a good way to get back into racing, as well as pretty many (although declining) weekend crits, road races, stage races, etc... Here it is all on obra.org, and I'd expect you have something similar in your area. A team that has a decent number of active masters racers is going to be your best resource. They'll know what races are going on.
Welcome back to bike racing. I was a junior racer in the 80's the started back up again just before turning 40 (about 12 yrs ago now) and I still love it.