You are an insignificant little worm on an insignificant planet which circles an insignificant star in a big (presumably) bad universe. A universe you will never comprehend, nor can ever hope to comprehend.
Just like everything that walks, breathes, grows, flies, crawls or swims, you are going to die. One day, your planet will die. Long, long after, the sun it still circles as a dead rock will die. Then there will be darkness on the face of the earth. That is, there would be darkness if there was any creature alive to view it.
Yon are going to die. Nothing can alter the fact. It is immutable. Inevitable.
But that should set you free. What does anything matter if you are one day going to be dust? Nothing matters.