You confuse yourself for no reason. Stick to what is clear, and let the ambiguities and unclearness be clarified through them.
What is for certain for me, is that without God's vision of who we are, we would be an illusion, but he doesn't a future knowledge of who we are. He doesn't know who will be patient and who will not be.
As for Adam, the calculations were all bet on him to not eat from the tree. It was not expected. And the events that transpired they were irrational after with regards to the generations leading to Noah.
And humans - whether they will mostly destroyed or even replaced, no one knows. God destroyed many nations in the past, but sent Messengers to stop their oppressive and corrupt ways.
And what occurred to Imam Hussain was written if the nation would rebel and remain disobedient, but it wasn't ever written in the sense it had to happen.
And among the sad prophecies of Quran but are contingent and written contingently, is no city or village will remain but God destroys it or punishes it severely before the day of judgment.
And among it's dark prophecies that are meant to be prevented, is that if we turn on our backs, which we surely have, the earth would be full of corruption and oppression in a very great amount.
And a point - Mohammad's people were threaten to be destroyed, but that was avoided, so let's hope the world accepts God and his appointees.
Everyone makes up reality to their desires if left to err. You confuse yourself Jane, but the truth is very simple.
Free-will is unpredictable.
In that lies the curse of humanity but will also lie the salvation and freedom and blessings of humanity if they make the right choice, and we help one another to justice and enjoin each other to hold on to God's rope.
