This is what I try to do and hope it will be of some help to you.

Death, the possibility of total disintegration of all we are,
that with death we enter into a pure state of nothingness. Of being only one day a name in a census record. All that we are right now one day being nothing but a name in that record.
More concerned about that possibility for the children and people I love,
for humanity in general. It makes me cry. Hard, so very hard indeed for me to live with that possibility. So, to survive...

Imo, that's what happens when the human animal brain gets stuck on only what it can perceive. Human animal brain...most people have trouble spelling, and we think we are so very intelligent...!...the big brained guys on the block when you compare us to the other denizens of this planet...the chimp, the caterpillar, etc. Nothing against those noble life forms but I think it helps to prevent us from getting too big for our pants, keeps us from thinking we are this highly advanced species in this most profound universe...ha! Heck, we can't even cure Lupus, MS, Parkinsons, Cancer, the common cold, the list goes on and on...no, we aren't supreme, haven't even begun to step on the periphery of understanding creation, black holes, string theory, and again the list goes on and on. Even the perceptions of Einstein and Hawkings...still perceptions coming through the limited human animal brain...perceptions coming before or after a turd. No offense, just pointing out that our bodies, just like our brains, are animal (not vegetable, not mineral, but animal).

There is a video which helps explain this...perceiving reality.com, I think it is. How all of our "knowledge" is based on the ability of the limited human....animal...brain. In other words, I keep my focus on this fact and that tells me that there is no doubt much more to it all than death of the physical. To just ending up as that census name. I should add that I once was a secular nun.

Going through this "existential" depression, I see now that my greatest fear isn't this possibility of "nothingness"....only a possibility when you look at life through the eyes of human animal ones. No, my greatest fear is us, the hoomans who often do the most cruel and unspeakable things. Getting older, it's the human animal species I most fear...and I shudder to think I belong to this species, and so I try (fail often but try) to be more than what I see in other humans.

Enjoy the ride and expect the unexpected when your ride is over. Expect the unexpected in this mind blowing universes within universe. And esp trust that we live in a benefic universe despite how bleak it sometimes appears on planet earth (it is a planet, you know...think, think about it).