need freshwater fishing help

Hi, I went out fishing today at about 4:30 pm. I fished a small lake
in bradenton Florida. The weather was hot bright and blue. I could
hear fish on the surface, but I could not get them to bite. I also
used a hummingbird smart cast fish finder and I could see fish every
where. I tried a small jig with a spinner, spinner baits, buzz baits,
crank baits,and I even had the fly rod rigged up with a popper and a
small dry fly combo. The full moon is coming up. What am I doing
wrong when and where should I fish. Should I try a plastic worm?
Thanks Mike