When I write I often chastise myself when words don’t flow. I am not sure why I do this. I know better.
A few days ago I hit a stride where everything seems to be rolling along just fine. This is rare. It is often the exact opposite.
William Zinsser says (in On Writing Well: 25th Anniversary Edition, p. 12):
“Writing is hard work. A clear sentence is no accident. Very few sentences come out right the first time, or even the third time. Remember this is moments of despair. If you find that writing is hard, it’s because it is hard.”
It is hard. It is OK to struggle with writing. That’s what it is all about.
the archives near Emmaus 
Really good to hear this. I find this with sermon writing as well. Some days it’s as if the “anointing” is flowing and some days it feels like I am typing on broken glass!
Typing on broken glass is fairly accurate imagery!