What I am about to say is relatively simple yet extraordinarily relevant to your life. Death does not exist. Life revolves around sensory perception, life ranges from the complexity of a human to the wandering of an ameba floating in a lake. Because your senses perceive the sensory input life provides you are in essence alive. However in death the mechanisms of sensory interpretation shut down. The brain loses function. And because there can't be any experience of non experience death cannot exist, at least in the traditional sense.
Operating on the logical premise that God doesn't exist due to the fact that spirits lack cognitive function and awareness, we are left wondering what happens in death. Currently I believe myself to be I. However others also believe in the notion that they too are I. And in the same sense everyone believes them self to be I. And so in death others will be born who believe them self to be I. However since I cannot be expressed as a multicentric phenomenon, this I will believe its self to be I (You). And thus the cycle will forever continue until every last conscious species (who believes them self to be I) dies out.
So do not fear death. But accept it, and embrace life.