De-familiarize yourself with your post before you publish. Get your mind thinking about something else, then come back. (It may even help to approach it in a new context. For example, print it out and – this helps eliminate the subconscious biases can make you overlook errors.)
However, if you’re just plain stuck, turn to a practical project. Send emails, prepare your taxes, go for a walk, maybe even clean. After a while, you’ll be recharged and ready to write.
Sometimes, starting at the beginning induces Perfect Draft Syndrome. It may be easier to get started if you approach the task sideways. If you&aposve a plan for the article or manual, choose a section from the middle or a point you know well and start there. Then do another section. After you&aposve gained some confidence, you can work on the opening and smooth out the transitions.
In life, those “important things” that get scheduled first are your job and family. If you have any room left, you stuff in friends and relaxation and whatnot. And then, at the very end of the list, you have your writing.