What can be done to deal with the fear of your inevitable death?

Find your own answer: For most people, it's a matter of making one's life meaningful; often this meaning is found in unselfish love of others. Answers from authoritarian sects may not satisfy you, but you may find guidance in accounts of survivors who have had experiences that seem paranormal -- i've been impressed by personal reports of people recounting nearby events accurately, and even socrates mentioned this.