I can see why your dream was so scary. Times will be chaotic for those who don't know our Savior, but for us who do, the Bible is full of encouraging words that will keep us strong and brave. Here's just one:
Heb 10:35 Keep on being brave! It will bring you great rewards.
Heb 10:36 Learn to be patient, so that you will please God and be given what he has promised.
Heb 10:37 As the Scriptures say, "God is coming soon! It won't be very long.
Heb 10:38 The people God accepts will live because of their faith. But he isn't pleased with anyone who turns back."
Heb 10:39 We are not like those people who turn back and get destroyed. We will keep on having faith until we are saved.