Been there and figured out some of it. I fish the same small spots over and over. What bait is hot this year might not be hot next year. Of course time to change baits. I change baits, colors and presentations till I get action using crankbaits, etc. if no action I go to brushogs, wacky rigged senko on a 24" Carolina rig.
I throw a few different lures too like rapalas, bomber shallow cranks, Norman thin n, inline spinners, spinnerbaits, yum money minnows, topwater poppers, spooks, etc. I use the baitmate bass attractant. I switch to garlic flavor too at times when no action is happening. Another thing I notice is the water conditions can change as we go deeper. It could look clear or stained on top but as we go down it can get even more stained, darker. Don't be afraid to throw brighter, larger colored baits. Don't limit yourself stay motivated and focus on your presentations too.