Is it normal i'd rather die if i were to lose my body parts or functions

It has been one of the biggest fear of mine to be an amputee or to lose any parts of body functions like becoming blind, mute or deaf.

I am still healthy with all my body parts still intact and no impairments but I've been thinking about it lately. I am already having a hard time with life as it is right now even though I am still healthy but I think I'd rather die if my fear were to become true.

For instance, let say if I got into brutal road accident and lose my legs in the process, I'd rather die instantly on that scene than being saved and send to the hospital.