The funny thing about reading is that we can do it for decades, picking up vocabulary and appreciating a polished sense of style.

And yet when we sit down to write, we have not consciously prepared ourselves with the tools to create and refine our own words.

So my advice would be to re-read parts of a favorite work or two that you consider to be eloquent. This time, as a student of technique, not content ... noting how the authors convey ideas clearly and convincingly, how your admiration is earned.