Originally Posted by Glen
Have you answered your own question?
I think Peter Graham nailed it with his comment on the Law of Delay. You could maybe try time-boxing your writing, say give yourself an hour to write 500 words, or whatever you think is a fair rate. But make sure you do the 500 words in the allotted time. Then you could take your time editing, surfing or whatever else you want to do because your core goal is out of the way for the day.
Not sure about not seeing things clearly. I have that problem with plots, but my mitigation is to plan each day, think through problems, ask questions, write down the answers.
My planning, and my writing are the two things I do each day. I set targets for the writing. I've worked out targets that are do-able for me, and not so hard that I fail and become discouraged. But if I fail for a day, i make sure I make up for the weekly target. Working so far....<crosses fingers>
I've found this method pretty useful too. Another thing is I am really big on the world-building which can quickly eat up time. So I make writing my limit of words my priority, and I won't do world-building until those words are written. Even I am focused and professional, I can have the words done before breakfast, which means on days I'm not shooting I can leisurely spend the rest of the day world-building, and on days I am shooting I don't have to stay up until ungodly hours trying to squeeze out my allotted words while I'm exhausted.