You are a dipshit. Just because your resilient, doesnt mean that your not depressed. Humans are very resilient & survive with only water for up to 2 months, according to a study that was performed on tv, by filling the stomach with bread. Able to survive, within extreme conditions, however once the bodies core temperature reaches 40 degrees celcius, the body starts to shut down & organs begin to fail.
If we lose 2 litres of blood, the body dies but if a wound is able to be mended fast enough with enough bandages to stop the flow of blood & no vital organs are punctured, then there is a good chance for survival. Some doctors refer to a persons recovery as a miracle because they generally say that it is unknown to science, how a persons body was able to heal, but it may be more closely related to not being aware of the extent of the damage & the individuals reaction to medicane but it also bring into question, cellular regeneration. All of these things are a matter of resilience. It has nothing to do with depression however im sure that an individual would be experiencing a greater extent of drepression because of it.