what am i doin wrong!?

i live in southwestern, PA and the local lake i fish is very shallow with water temps about 70 degrees right now...in the spring time i crushed bass outta there on jig n pig, and now i cant seem to get a hit!, it pretty much only has rocky banks, standing timber and a major creek running into it...sounds aweome right!? WRONG!! i have tried everything for deep to shallow, jig n pig, flukes, senkos, spinnerbaits, you name it ive tried it in every depth. Please tell me someone out there can help me out!