Interesting, do you have any examples/literature on this idea of a progress meter? I think I might try that. Especially the whole 20 hour idea, I think will be really useful for me.
I extended the 20 hour practice idea from Josh Kaufman [2]
I highly recommend Sam Harris (Waking Up), Alan Watts, Laozi for mindfulness / meditation, as well as Iain McGilchrist (The Master & His Emissary), Mihály Csíkszentmihályi (Flow) and David Foster Wallace (Infinite Jest) for metaphorical inspiration. Learning to play at life in any moment helps to eliminate tedium & boredom from your vocabulary.
[1] https://imgur.com/a/pMudls5 [2] https://www.youtube.com/watch?v=5MgBikgcWnY