I see you're beginning to let on about some of your chart...
Sounds like you've traversed a fortunate path, my own life has felt similarly breezy, although I'd say it has much to do with my attitude than anything else. I've gone through the regularities of human life; death, rejection, conflicts, loss, pain, poverty, austerity -- the works. And based on the path that I wish to carve for my life, the worse is yet to come. None of this has shaken me deeply enough to break me.
I'm not physically lazy, in fact I currently work on cars during the weekend. (it really helps to keep me grounded when you bare in mind my other interests). But I can definitely relate to that ability to mentally apprehend situations and come up with the steps before diving in.
Point taken on the false humbleness. I find that worse than false pride because at least in the latter case that tendency is obvious. The former is much more insidious.