I so hear ya. I've been trying to finish a book for months, and it is excruciating. We barely got the tree decorated this year; I've been late for quite a while. Bills are due, etc. It's a 940 page project, and every time I look at it, another little correction is made. And I look at it every day, and I am still finding things that I should have noticed months ago. Sometimes it is hours before I can look at it. Of course it is improving; style does not come naturally to me, it is worked and re-worked word by word. I had good feedback on my last project (if not much cash), but this one is much bigger. Altogether, it is so difficult to enter into such a project that I would say to detractors, try to write something yourself, not even in the same genre. Ultimately, I am trying to be detailed without being boring or opaque, and that's a tall order. A fiction book, that needs elements of subtlety and surprise, is much more difficult. Best wishes to you, and yes, I do hope the series becomes easier to write, but only for your sake.