Can you offer any advice about overcoming writing anxiety?

I'm a perfectionist too! So I feel your pain!Sounds to me,like a typical perfectionist, you are thinking way to much into this. Just write! Have someone check it for you..its part of writing a paper just revising. So..just write whatever you think you should..then go back later, and if it doesn't make since..switch it around, take some out, add some in. And if worse comes to worse..get some other people to help you. My friends always have my revise their paper..and it makes them feel so much better. And most importantly..write about something you like.