I'd say the closest thing in my life was whoever called the ambulance when I was unresponsive and stopped breathing from OD, and whoever called the ambulance when I was on concrete with multiple broken bones, a concussion, and a collapsed lung.
Has anyone ever saved your life?
My mother. I had seizures (of course) since I was 12; that's about 25 years so far. I had the big ones. My brother said I looked like the exorcist.
Minus the holy water and the floating.
If my mother had not be stubborn and argued with doctors and took probably a hundred (not exaggerating) trips to the hospital, I would either be intellectually disabled or have a long seizure that can be left threatening.
My mother said the doctors told her if I didn't have surgery, and my brain was deteriorating every seizure, she didn't know where I would be.
Outside of the mother motherly things she did and didn't do, this one took the cake.
I haven't had anyone directly save my life like stop a locomotor or fight off Lex Luther. I'm pretty much me. I save myself.