Better to finish the whole book first. You won't know the entire shape (and edit or revise as appropriate) until it's done. Individual chapters do not make a book.
Its sci-fi actually, and thanks for the advice...I read it again ( the who 68 page ) and I gotta say, i've got plenty of adding and subtracting do to. Thanks for the response, it really helps
Sort of advice, bro. It is better to print. it is of course for editing. It is easy to edit a manuscript if it is printed. I don't know what is the science behind this. but most of the writers and editors recommend to edit it that way. And actually you can edit it even though it isn't finish yet. Some pros even suggest to edit what you wrote the day before . . .before you write again.