Gods justice scales makes eternal suffering an impossibility. He taught all his perfect justice= an eye for an eye= perfect balance on Gods justice scales--So for 70-100 years of an unrepented sinful life, God could not or would not punish one for trillions x trillions x trillions etc of never ending years of suffering. there is no balance in that scenario. The true living God set before all( Deut 30:19-LIFE or DEATH, both will be everlasting.
It was symbolic for this--As each new day dawns in Gods kingdom, those not allowed in miss each day, Miss each day of Gods love, it never ends. Likened to be an eternal suffering.
Only a sadist would create a literal eternal suffering. God is love, merciful, not the sadist being taught by blind guides that do not know him. From those i say--RUN.