I'm not sure how much help I can be, but as someone who's less religious but a bit more spiritual(to a fault, it sometimes delves into my delusions) I had never been too keen on believing on a concrete afterlife until a few years ago
When I think about my passing, I just imagine it like falling asleep, and waking up in the next universe, the next life
Although sometimes it's less that I wake up in the next life and more I wake up in my personal afterlife, where I can take whatever form I want, seal, cat, even a dragon at times
I imagine in this state, that I play with my closest friend, my life partner, for an eternity, in whatever forms we're in
There's so much talk of what the afterlife looks like. Christians saying that there's heaven or hell. Those who believe in reincarnation
I think when it's something so intimate it's important to delve into yourself and see what you see in those moments. At the end of the day if you're scared about the idea, imagine an ideal version of what can happen after you go is a kind way to see it in my opinion
At least that's how I see it

