Ok, try this exercise. Write the title of an article that you are working on, or have been thinking of working on, on the top of a blank word processing document. Set a timer for five minutes, look at the title again, and write. Write without stopping, without thinking.
After the five minutes are over- look for one piece of data, a quote, a citation, or an idea. Take five minutes to read it and look it over.
Now, set your timer again, and write for anther five minutes.
How much writing were you able to do? Amazing what can happen in a short period of time, no?
Try this every day for a week, and see what you are capable of with very little effort.