should I turn back to god or should I continue to deny god's existence?
The thing is, of all the gods in the celestial zoo of deities which one should we 'turn' to?
The thing about the evil God of the Bible is that you cannot just suddenly start believing in Him as a sort of insurance policy, this monster knows what is in your heart and will know your reasons for turning to Him. If your conversion is not genuine then I'm afraid this ghoul will toss you into the Pit.
Then there's also the possibility that the real god will be ticked off at you worshipping the fictional god of the Bible and toast you as well.
This scenario is as flawed as Pascal's wee bet.