Try writing a smooth draft instead of a rough one. Never, ever refer to one of your drafts as "rough." The language we use does make a difference to us, highly suggestible humanists. I can see having a draft that is incomplete. You might want to share that with someone, but never a rough draft.
Some writers start at the beginning of the paper and write sequentially, paragraph by paragraph, until the end. They don't start the next sentence until they are happy with everything in the paper preceding it. I have never been able to work that way. In the first place, ideas occur to me at unpredictable intervals for later sections and I need to write those ideas down so I don't forget them. It might be a week or two until I get "there" in the paper and by that time I will have forgotten. Secondly, I need to skip back and forth between sections to make sure they are consistent with one another. Thirdly, I know I will go back and change sentences anyway, so there doesn't seem any point in getting them perfect before I move on.
Rarely, I am able to write several paragraphs of coherent prose back-to-back. I enjoy that when it happens, but I couldn't depend on that.