I love the story about Michelangelo. Thanks for sharing.
To the topic: I think it depends on what your goal is and what and how often are you sharing. It is different to say you want to be a marathoner vs a sub-3 hr marathoner, a writer or a writer for ABC or with XYZ readers.
One shouldn’t make a fuss about all progress but milestones are imho worth sharing. Like a 10k race results for a marathoner or a little concert/recording for a pianist or an article for an aspiring writer.
But then, also, some people are driven by competition and spotlight, for others it is paralising.