Thanks for all the thought out responses. I don't want to take too much of your precious time, but I want to touch on what you just said about learning persistence.
My father has one of the worst cases of post polio syndrome in the world and (as far as we know) has used an iron lung longer than anyone who's ever lived (66 years). I spent my summers with him as a child and through to my years as a young man. I had to work very hard, sun up to sun down on our family farm.
The whole day, as I did my hard work, he would push himslef along in his wheelchair throughout the field with his one good leg. A very hard task for someone with 75% of their diaphragm having been atrophied. He would use he good leg and foot to grasp a water hose to painstaking water the garden and dozen or so fruit trees. He would pull weeds with his toes, slowly push chopped branches from felled trees and cleared brush. He worked harder than anyone I've ever seen, (And I worked as roughneck in the oilfield.)
His example is the one and only reason that I have the persistence and work ethic that I do today.
Sorry for the wall of text.