Keep getting skunked. Help please

Moved to st pete from dade city about a year and a half ago, got back into fishing a couple months ago after having not fished since childhood. I've tried so many different rigs, fishing times, locations (in freshwater), but I cant seem to get anything to bite at all. Done senkos, frogs, spinners, live worm on a bobber, hula poppers, crankbaits, jigs, etc. I do my best to fish near cover, shade, near insect activity, and where water might send baitfish. What I'm really looking for is advice on how to catch something, or places to try that someone has had good luck in. Its kind of getting to me how I keep devoting time and money to this hobby with no results. Is it really all just being at the right place at the right time? Is summer fishing just bad? Is shore fishing just bad? Or am I completely missing something that I'm not even considering? Anything helps, thanks