Method When using .357 hollow points fired from a revolver, what happens when the shot misses the brainstem or beginning of the spinal cord?

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I am assuming probably the 2nd worst possible outcome here where the shot misses the immediately fatal parts of the brain. Assuming I am in an isolated area late at night with anywhere from a few hours to multiple days before discovery, is it safe to assume I will eventually pass away if I receive no medical care? I have heard that brain swelling could prevent death by blood loss, but will I die anyways just from the trauma if I am not found for some time (assuming room temperature and no other factors)?

I have also been planning on doing it outside in a t-shirt while soaked in water at an ambient temperature of somewhere between -20 to 5 degrees (Fahrenheit). Is it reasonable to assume that after I accidentally shoot myself in a not instantly fatal manner that I could expect to pass out? (and then die of hypothermia within 2-3 hours)

Thank you for your kind advice