The Great Tribulation is the last half of the last seven years. Not worth wasting time arguing about.Jesus took [all] tribulation upon himself on the cross--meaning that any other single event in all of world history would only be part and not all. If you deny this, you deny what Jesus has done. Plain and simple.
As for your misunderstanding...what Jesus did was to identify the [actual] time of the great tribulation. You simply could not imagine it and therefore have believed the foretold "lie" that has caused the foretold "strong delusion" to come upon so many, rightly called "the great apostacy"...just as it is written.
But--I had enough of you. Change or be cut off.