I've accepted that death is inevitable for me at some point too, probably sooner rather than later though I'm trying to stick around as long as I can. I'm 11 years into having full-blown anorexia, but had disordered eating and pica long before that, and I have severe trauma around IP so I'd never be able to access any kind of psychological help to recover coz I fear IP far worse than death.
I definitely want to be buried not cremated, and I've been slowly saving for my funeral and burial for the last year. I've got a lot of anxiety around dying before I have enough money saved up and being cremated or not being able to have a funeral (I only want a really basic ceremony, so long as they say a prayer when they send me off, I'll be happy. I have religous OCD, among other types, and I get a lot of really terrifying intrusive thoughts about where I'll end up otherwise. It's also really important to me that my remains are in a church graveyard.)
I've got a will written, I just need to sort out 2 people who won't benefit in any way witnessing me signing the will so it'll be valid. That's the next challenge.
So I need to at least live long enough to sort out my death arrangements basically. I'm leaving everything to my boyfriend, and I want to try and get some things sorted out to help him remember me after my death too. Ideally I'd like to be able to afford a gravestone so he has a physical thing to see when he visits me, but that might not be possible. Funerals are so expensive honestly, I understand why so many people get into debt over them now.
I wish I could also donate my organs after death, I'd love to be able to do some good once I'm gone but unfortunately I've got a genetic condition that means they wouldn't be able to use anything. Not even my bone marrow could be used