If there is a path to GMI you’ve put it into much simpler words than I ever could.
Put another way, a person who struggles and takes some unduly pride in how hard they worked will not ascend anywhere close to his level, not only because they will find climbing a single step on their way to a mountain to be a massive undertaking, but because they’ll never find the simple joy in simple drawing in a park.
I remember KJG said in his interview that he gained a newfound sense of confidence one day in his apartment in his 20s when his girlfriend left him and he was drawing to pass the time, realizing he was able to draw anything. Imagine having that as a core belief, having no apprehensions about omg I suck at this omg I suck at that I’m not practicing anatomy enough or whatever. The guy is absolutely unhinged and loves it.
Be like KJG. Go draw shit and enjoy the sunlight modelling form for you everywhere you go. I’d post some sketches from backyard today but I’m posting from a phone. Another time.