I know how you feel. Writers flop is a real pain.
There are times I have so many great points and ideas in my head which I can’t wait to share with the reader, then when it comes to putting them on paper they either sound awful when read aloud(as you mentioned) or, they fill all but a paragraph of the page.
Not nearly enough to entertain even the most ADHD of readers.
It’s a frustrating time but all we can do is keep on pushing on and eventually, the words will flow once again.
Thanks for sharing and good luck on your writing journey 😁.