It's an unnecessary burden to try to think of words and also worry at the same time whether they're the right words. Elbow recommends that you spend ten minutes each day doing freewriting. The freewriting you do will ultimately effect your legal writing. Freewritings are vacuums. Gradually you will begin to carry over into your regular writing some of the voice, force, connectedness that creep into those vacuums.
Plentiful writing makes for a willingness to edit.
If you stop too much and worry and correct and edit, you'll invest too much in these words on the page. The idea is to write freely and plentifully and so that you can discard all the rubble that you have produced. Elbow tries to free us up as writers by the use of freewriting. Freewriting is the easiest way to get words on paper and the best all-around practice in writing that I know. To do a freewriting exercise, simply force yourself to write without stopping for ten minutes.