I've hunted a bit in coastal North/south Carolina which I would assume might be similar to Florida in several ways.
1) make sure you're shooting a big #%* BH! If the brush is the thick like I'm thinking you won't get longshots and you won't see the deer go down
2) get some trail cameras...well I'm not a big fan of them in thick cover sometimes it's the only way to pattern deer.
3) don't lose heart! December and January can be the best hunting!
4) from seeing a couple of your other posts it sounds like you been hitting it hard! Make sure you aren't overhunting any specific areas. You can do yourself a lot of damage this way.
5) don't hunt specific winds. In areas this thick it's hard to tell which way the wind is blowing. Find your local weather and go off of the prevailing wind forecast. I use
www.weather.com