As someone who has been injured a few times (I grew up playing contact sports and am generally reckless when it comes to my physical well-being), you need to factor in how trippy it is to experience. I recommend reading first hand accounts of near death experiences. There's a really good one from this guy in the 1800s who fell really far while climbing the swiss alps and survived, I think he may have actually coined the term near death experience or at least noticed it was a phenomenon.
I also recommend reading through the true case of Alison Botha (or watching a video (I think I heard about her from Eleanor Neale's video about her on Youtube)). It's pretty gory and heartbreaking but she survived being disemboweled and almost beheaded and is still alive giving motivational talks even today. She was also conscious for most of what happened to her and the sort of things she talks about remembering are fascinating to read.
Sorry for the ramble but hope it's helpful.