I would advise you to start by riding some group rides, and work your way up. We have several women racing for Velobrew (www.velobrew.com) and most of them ride on the Tuesday night ride out of Open Road on Hendricks (don't make that your first group ride...).
If you want to get started riding with groups show up for a few NFBC rides ( www.nfbc.us ). Older group, good place for a beginner to start and learn group etiquette.
Tri club: Hammerhead Triathlon Club ( www.hammerheadtriathlonclub.com ). Monthly meeting was tonight, good group, lots of young and enthusiastic members, group workouts (mostly out at the beach). Susan Wallis, the president, is a great person to know and is involved in many local races including the BFAST sprints and the club's own tri, the HOT at Camp Blanding.
Finally, I'm assuming you're across the river from OP, but I ride most of the time out of About Bicycles on Blanding. Kent Lofton, the owner, is a multiple time State and National champion and about half of our regular riders race at least occasionally.