I've given that question a LOT of thought, Susan. If, in three months or so, I look at a photograph I've made, and it still is successful in my eyes ... I wouldn't find either the "How" or "What" (either would be pretty obvious) of great interest; I would certainly consider making another successful one, possibly through a path of "non-thinking", where I try to recreate the emotional state and something of the mindset that accompanied the original. Not that I would set out to make a direct copy, but to enrich the field, prior to the later harvest. In other words, recreate the "Why".
Something similar may well apply to a musical performance, or smallbore rifle competition. Rehearsals and Practices are the times for analyses and introspection, THINKING, and fussing over the tiniest of minutia. When it comes to DO time, one has no time left; the important thing is the flow. Overthinking will only slow down the process and draw attention away from the absorbtion and infusion of that mystical gift called motivation - or inspiration ... or ... whatever the hell it is...
Scary ? Yes, it is. One will feel a sense of loss of control - always frightening.
I HAVE t do this. I've been overworking/ overthinking FAR too much.