Technically, the Last Days began when Jesus, God the Son, was born. Since that time, Jesus has been on the march, bringing life and hope and light - saving us and saving everything else. According to Jesus and all of His prophets, there will be a final confrontation - a showdown between Satan’s corrupt kingdom of deception and darkness - and Jesus’ Kingdom of truth and light. Here’s an image; D-Day didn’t end WW2 - but it did make it clear that the huge, evil Nazi empire was going down. It was just a matter of time.
Now, there are a lot of images in Jesus’ words as recorded in Matthew - and recorded by John in Revelation - but they are all intended to create hope, not fear or dread! When something creates fear, dread or confusion - it isn’t from God; it’s from the enemy, and usually the interpretation of a false prophet. Our hope? Jesus has come to save us and everything else!