Darlene, go snorkeling and don't worry about it. The odds of getting bitten by a shark are unbelievably small. Heck, Volusia County is the most likely place in the world to be bitten and the odds there are still less likely than winning the lottery. The waters around here, (yes I live right in the area), have always had lots of small and not so small sharks that feed in shallow water that is very cloudy. Common sense says don't splash into the water in the evening, in cloudy water, where bait fish are and where you can see sharks feeding, but people still do and those are the ones getting bitten. The ONLY reason you are hearing so much about it is because of media hype which started because of that poor child getting attacked by a Bull Shark over near Pensacola. It made big news so the media in it's frenzy to outsell others have gone nuts reporting every nick or scrap caused by a shark. It's nothing to laugh about, but you still should not be overly worried about them.
We just returned from the West Carib. and we went snuba and snorkeling at Cozumel, and Grand Cayman, I asked at both locations if there had been any recent problems and was told at both places there hadn't been any problems. We spent a lot of time in the water and never saw any sharks. We did see a lot of Baraccuda in Cozumel, some were up to 5 feet long, but they didn't bother us, we may have been a bother to them following them around taking pics, etc.. Just don't wear anything shinny.