Quantity leads to Quality - A Writing Lesson from a Pottery Class

I've mentioned elsewhere how useful the EroticaAuthor's Subreddit has been in quickly getting me up to speed with the ins and outs (and ins and outs and, oh god, in, in, in's) of erotica writing.

One of the most powerful posts there was another writer pointing me to a story, a story about not books, or writing, but making pots.

It's a story from the book Art & Fear by David Bayles and Ted Orland. It's what I think is a profound insight into a route to getting good at something creative:

The ceramics teacher announced on opening day that he was dividing the class into two groups. All those on the left side of the studio, he said, would be graded solely on the quantity of work they produced, all those on the right solely on its quality.
His procedure was simple: on the final day of class he would bring in his bathroom scales and weigh the work of the “quantity” group: fifty pound of pots rated an “A”, forty pounds a “B”, and so on. Those being graded on “quality”, however, needed to produce only one pot – albeit a perfect one – to get an “A”.
Well, came grading time and a curious fact emerged: the works of highest quality were all produced by the group being graded for quantity. It seems that while the “quantity” group was busily churning out piles of work – and learning from their mistakes – the “quality” group had sat theorizing about perfection, and in the end had little more to show for their efforts than grandiose theories and a pile of dead clay.
Isn't that amazing. And so applicable to writing. It's easy to just get stuck going over and over trying to make something perfect, and I've already seen that trap looming as I've started writng material for you lot. But right here and now I'm opting to take this path, to deliver lots, and lots of content, most of which I think will be great, but almost certainly could be improved in some way. And through your involvement, increase the quality as we go. I'm pretty confident that I have a good baseline. As a supporter, you'll be able to see too, but I've already had feedback from a lovely group of 'alpha' readers who really know what they are talking about, and have encouraged me that what I'm writing is definitely good enough for a wider audience.
But I'm also not 'precious' about what I'm writing either. There's a lot of mystique built up around the writing process but my plan is to get it all out in the open. I want your input as we take this journey together - on the writing, which stories you want, what you think of the covers, the concepts, the output.

I'm going to make a lot of pots, some will be great, some might break, some may only be good for pissing in (and some of you might even like that). But I believe, as write, they're going to get better and better, with your help.
So thank you for your support, thank you for believing in this idea, and getting behind me. I'm excited about the journey and having you with me on it.