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When Hashem promised us the Ultimate Redemption, he meant it. So, no, the world is not coming to an end. Hopefully, though, all the recent unrest and tragedies are the birth pangs of Moshiach.
There’s no question about it, all the events you mentioned, that’s Hashem nudging us to wake up and do Teshuva.
But scared? What’s there to be scared of? Totty’s coming to take us home!