It's like making pancakes. The first pancake is always going to suck. Just accept it and get through it so you can make a great batch of pancakes, or blog posts, or products, or...
I'm not sure how that translates back to writing, though...
Perfect batches with no waste!
Shake on frying pan
If droplets wiggle and bounce -> pan hot enough.
(I know you know that...)
Interestingly, Google actually translates this to "better luck next time" instead of "the first pancake will be a lump/clod"
I love the Russian expression and we should steal it.
Perhaps that was the first cloddy attempt?