One of the things that helped me was basically to just realize that I'm a random organism in the universe, exactly like every other organism that ever lived.
Literally every organism to have lived on this planet has either died, or will die in the future, so that's kind of helpful.
I don't want to try to explain or rationalize anything with spiritual thought, or cloud it with my conscious thought, I would rather just try to look at it realistically, and for the most part I manage to forget it during a typical day.
Truth is though, that the human mind isn't equipped to handle death on a spiritual or rational level. There may exist a lot of people who say they have no fear of death, and that their focus is on life, and whatever other philosophies they have come up with, but when reality comes, and it's time to die, I'm sure most people will feel what acceptance really is.
In a way, death can be said to be even more natural than life, that destruction is more natural than creation, but they are both the same thing, except as conscious beings, we ultimately end up losing something in the process, while other things may just change, without anything lost.
I truly believe most of the comforts we have built up, society we have created, the awareness of mental concepts, illnesses, awareness of self etc, has induced a much bigger fear in humans, than earlier seen.
I don't really think one should completely accept death, because this would mean that one wouldn't care about living either.
If you like ANYTHING on this planet, then even if just for a split second, you would think 'well I don't really want to die right now, I'm in the middle of this activity..'
I think, the focus should not be on death, and it isn't for most people during a typical day.. But I mean, just focus on making a good life for you and others around you, focus on what life has to offer, and the day when you're about to die, let it be sure that nature will make sure you die, so you are out of control completely, and isn't that kind of liberating? No responsibility, nothing you need to do at all, you can just let it all go, and get some rest.