I'm not a time trialer but I can give you a couple tips.

First, when you start, use the big chainring and one of the bigger cogs. You don't want to shift the front derailleur, esp in Florida. Don't backpedal when you're at the start - the chain may derail in the back, sometimes in the front. Relax and breathe deeply. Stand up at 3-5 seconds to go, and go at about 1/2 second before they say "go".

Second, when you accelerate, go just below "briskly". If I accelerate "briskly", I inevitably find myself going 800-1000 watts. If I accelerate just below "briskly", it seems to keep me at 600 watts or under. Since I can only maintain 250-260 watts, it's not good for me to kill my legs at 1000+ watts. So just less than "briskly". This is if the TT is more than, say, 7 miles long. If it's 3 miles long, accelerate briskly.

Third, spin. Spin spin spin. Spin until halfway into the TT, and if you feel like going faster, go faster. I always find myself struggling the second half (to be honest I haven't done a proper TT in about 15-18 years). But my record TT happened when I thought I was on a bad day, used little gears to spin, and really punched it over the second half of the TT.

Fourth, hold that aero position. It can really be uncomfortable after a while but stay aero (low, tucked in, smooth). Aero is vertical - check out seat masts on the most aero frames like the Shiv and such - the seat mast is vertical and there are virtually no sloping surfaces. This means putting the bottle in the seat tube cage vs the downtube cage. Forearm parallel with upper arm perpendicular is better than the whole arm being at an angle. The worst angle of attack is 30 degrees, so holding your forearm at 30 degrees is the worst thing you can do. Flatten it out and have your bicep hit the wind head on.

Okay now the real TT folks can pipe up.

Oh, if you're still feeling a bit sick, take the edge off your efforts, esp if you want to be racing next week or the week after. Not allowing your body to recover will just keep you sick longer. If it's even a little chilly I'd wear an extra layer on the torso. So what if you sweat. If you get or feel cold that's bad.

good luck
cdr

*edit since I never read the TT sticky I may be repeating what other folks said. I'll go read the TT sticky. /edit*