Read Luke 21:25-36 with your family. Jesus talked about all sorts of terrible things happening, but he also said look up and stand up to all the bad things.
Christianity is about changing the world from what it is like today to what it would be like if everyone lived the way Jesus asked us to live: feed everyone, make sure everyone has good medical care including vaccines against Covid, give everyone somewhere safe to live, make sure all families and friends treat each other with respect. Imagine what that world would look like. That is what we are waiting for this Advent, for Jesus to come again as a baby full of hope and promise for the world he wants us to help build, and we are ready to be Jesus’ building helpers.