we don't send ourselves to hell

[John V]

OT prophecies have always been contingent on human actions, as in either repent or this (plague, foreign invasion, etc) will happen.

No, there are messianic prophecies with no contingencies attached. Some regard the crucifixion. By your reasoning, god could not have made such predictions, as he didn't know that people, being free moral agents, would kill Jesus.

The people of Nineveh repented and avoided a dire fate. God can know the potentials and as events draw near can make near certain predictions (as in the case of Peter's thrice denial).

Peter's denial wasn't certain when Jesus predicted it? Are you seriously saying that?

As for Revelation you will notice that almost all the action is taken by the Lord.

Actually, no, I notice plenty of action by people and by Satan and his crew. Is it your position that those are just guesses at this point, and god doesn't really know what will happen?