What does not kill you makes you stronger? True or False

Did this one in way fewer sentences:

I have a bigger problem with this one as Nietzche said it, so for a long time I thought it was great; now I prefer, “Finishing requires a heart of steel.” from Delacroix, which could be applied to the first one, that what does not kill you does NOT make you stronger; what does not kill you, you obviously survive, and sometimes it requires a heart of steel, whatever that is, to keep on surviving. Well no actually. What does not kill you does not shape who you are; what does not kill you does not kill you, meaning you survived and now are faced with PTSD and healing from it, as being almost killed, whether emotionally or physically or mentally or all of them, is a traumatic event. Because it was what it was and you now are still you but what it was almost killed you which is what it is and so, how do you go on anyway, feeling weaker in body, mind and spirit…