time your fishing according to the tides.
try going out on an incoming tide and look for strucutre where predators can lie in wait to ambush prey that the tide brings in. it doesn't have to be visibile above the water. trenches, sunken logs, clumps of grass, etc. provide good ambush points. position your boat up current of the structure and cast downcurrent beyond the target strike zone, make the lure appear like it's struggling to fight the tide and you'd get hit. a no fail lure would be a kastmaster or similar spoon so that you can adjust the depth in search of the fish. then once you find the right depth, switch to a plug of your choice that swims in the depth of the strike zone. you can also drift a fresh or livebait towards the strike zone. do this again on the outgoing tide, but the incoming usually is better fishing. i'm no expert so take this advice with a sack of salt.
tight lines.