What are some good resources for an author working on their first book?

Someone suggested the book A Writer's Book of Days: A Spirited Companion and Lively Muse for the Writing Life by Judy Reeves, because I tend to suffer with writer's block frequently. I've been working on the same book for a long time now and I just keep reading over it and deleting 2/3 of the book and re-writing it. Maybe I'm just too critical of my own writing or something, but I'm determined to finally see this thing through to the end, even if it isn't published anywhere except through Amazon for Kindle or a similar source.