You can also try "freewriting" @ayerz

Freewriting involves writing non-stop whatever you are thinking about as you are thinking about it. Sometimes it involves typing "I don't know what to type I don't know what to write my mind is blank" but eventually a new thought will pop up and you write it down instantly.

Once you are done freewriting you can extract some of the ideas you wrote and construct them into a real post.

P.S. I usually set a timer for 10 minutes when I freewrite.