I write letters to accept my mortality

For many years I’ve been scared of dying and being recognized as someone I’m not, my family doesn’t know anything accurate about me and even the ones I talk to have a completely different idea of who I am in their minds. That’s why I decided to write letters that are to be found if I suddenly die, I’m still planning on how I’d get someone to find them only after I’m dead but I feel like these letters also help me be more at peace with the fact I don’t know when or how I’ll die. I still want to achieve some long term goals but I’ll keep writing these to keep me at peace.
In these letters I just write my final words to the people I love, explain who I am and the things I like, all of which I refuse to open up to the about.
Together with how to bury me.