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I simply do not agree with your assertions. Stall and spin awareness will remain central to fully understanding the behaviour of the wing in the low speed regime.
More to the point - stalling is required to pass the skills test
Also - bank angle alone has no direct effect on stall speed - only AoA so if you start all of this keep less than 20 deg here nonsense you are leading yourself into an area of false confidence and understanding.
It's quite clear that you are a 'numbers man' which has its place but it strikes me that the original poster is not 'in that market'.
Back to enjoying the whole experience and being confident; might I suggest some well flown demos by your instructor should help restore some confidence (if that's what is lacking).