Matthew 6: 31-34
The problem with the future is that it is unknown, and we don't like the unknown. Jesus give us some suggestions is Matthew 6 such as controlling our thoughts, changing our focus to today, and making God our priority. By doing these things, we will have peace with our future.
On multiple occasions with the disciples were filled with fear and dread, Jesus came to them with a greeting of "peace" before anything else. If we can find Jesus in this hectic, distracted world, then we too will find "peace."