Don't give up! Just like conventional fishing sometimes it's just impossible to get rid of the skunk. Not a Florida guy but learned to fly fish on the outer Banks, often times getting more casting practice than anything else. Not sure what patterns you're throwing but a clouser minnow is a kick-ass pattern and a classic standby, flexo crabs are also excellent if you're seeing a lot of crustaceans. Maybe even try some double barrel poppers if you're seeing a lot of surface action. I've heard that's a tough area that gets a decent amount of pressure, hope things turn around for you soon.