Is there a name for the fear of the afterlife? I don't think about it very much anymore, because after a long time I began to realise how irrational it was.

I searched around a bit and couldn't find a specific name for the fear of the afterlife.

I did find Thanatophobia though, which is the fear of death. I suppose the fear of the afterlife is somewhat along the lines of the fear of dying, but I think they're a bit different.

I used to have an immense fear of the afterlife when I was 14

I used to think a lot about it I mean "Death/Die". Things like what's going to happen when I die, with me, with my personality? (no answer to that). Those are scary thoughts let me tell you...

I really don't believe in anything (I'm atheist) so the idea of death to me means being on a coffin and being eaten by worms, of course I won't feel a thing but it's horrible to think about it.

But also the idea that I'm going to be forgotten in a blink of an eye, no one will even care, I mean we're all going to be forgotten like we have forgotten our distant relatives.
The most scary thing is the nothing itself because that's what death is, nothing.
What the hell is going to happen to me/us when we die?? We all die alone, you have to go through that on your own no one will help you with that.

Woow I'm scared of what I've just said...
I don't like to think about that...

^That's the most depressing thought I can think of
The thought of nothingness, and I don't mean the nothingness of being forgotten...I really don't care much if I'm remembered on earth once I'm dead. I mean nothingness as in, if nothing happens when we die. We just get stuck in our coffin and rot, byebye conciousness

I don't get how people who "don't believe in anything" manage to stay sane

I am sane ( well sort of) that's why I don't like to think about it !!!