A great question, which I believe many people struggle with at some point.

For me I believe in accepting the fact that death is inherent, no matter what it will happen, so how about appreciating the fact that it will happen so take every day as if it was the last and give it your best?

The people who resist death and try to cling on to mortality I believe are people with unrealized dreams, and the fact that they can see the end scares them, they don't want to leave before experiencing the thrill of say realizing themselves.

But if you at least try to give every day your best, when that day comes you will be at peace, waiting for whatever happens next in the next realm.