What should I fish and where should I be fishing?

I kind of lost my fishing winning streak,you see the place I have been fishing seemed to be empty for a couple of days already.The other week I caught over 80 five pounder some even more but today there's nothing of that size.I am fishing from shore and that's a rocky area.That place always produced fish according to what species for what time of the year.I have caught over thousands of fish and lots of people have been fishing there too.I fish almost everyday when I am free.Could it be that the place is over fished but mostly caught when there is plenty of water coming in,so the fish must have followed the current in.Should I change my tactics,I fish with baits,lures and live baits,floating,mid water and bottom.Occasionally there are monsters over 50lb game enter the water,some landed some lost but lately no trace of these size.How can I know when they are most likely there,under what condition is the best.If I know they are there I usually can entice them to bite,could it because the stocks are too low.