I remember the feeling I first got when i found out the truth was not the truth, I felt I wasted my time selling books for a publishing company. Later thru a more objective study of the bible I came to the undeniable conclusion it was all bullshit but it still took a while to see that all the afterlife teachings were based on nothing concrete even the near death experiences that people had can easily be explained as hallucinations of the mind and often colored with a persons mythological indoctrination background.
I look at death as the end of life with no here after. I don't feel sad about this,, relieved,, might be more like it and acceptance with no need to pursue any teachings in this regard concerning after life.
I know I will die, the only thing that worries me is that I get paralyzed or something where I suffer with tremendous boredom on a life support for months or years. I hope to die before i get really old and can't take care of myself, I don't want to be buried just get rid of my corpse without any cost to my family. If I die before I get crippled and very old I'll be happy,,what more really can one ask for? Realistically.