Sorry for your situation. I think even though we don't deal with death the same as others, we have to deal with it. I've had a lot of experience. A school shooting in high school 10 feet from me, time in the military, time working in EMS, friends who have died in plane crashes, and my best friend since 6th grade murdered a few years ago. These things affect us, even if they do so differently than others.
One of my favorite scenes from the movie about Temple Grandin was when she would say "Where do they go?" after someone or something died. I really connected to that, because you could see it was affecting her differently, but she was struggling with it just the same.
I don't know if any of this helps. I planed for a one sentence supportive post but then I just kept typing. I guess the best advice I have is to let yourself feel and think what you do, you're brain will work it all out in time.
Take care.
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"A feller wiser than myself once said, sometimes you eat the bear, and sometimes the bear, well, he eats you."
The Stranger - The Big Lebowski
Your neurodiverse (Aspie) score: 140 of 200
Your neurotypical (non-autistic) score: 59 of 200
You are very likely neurodiverse (Aspie)