I always thought perfectionism was someone who was productive but way too hard on themselves, overworking to achieve some end that's just not worth it. Not necessarily - it can also mean DOING NOTHING because you dont see a way to do it perfectly.

This has helped me a lot with writing. Sometimes you just have to write down incoherent slop. Let the ideas flow and be content with knowing they will have to be revised later. By all means if you write with more purpose and structure without getting too bogged down to continue then do so.