That's right your pages don't need to be pretty. They can be ugly. You can leave them raw and "unfinished."  Your pages can be:

Dirty
Dark
Ugly
Nasty
Angry
Black
White
Plain

The finished page will be beautiful in some manner. If you don't like it you can always go back to it, reuse it, gesso over it, collage it into another page, glue the pages together and further manipulate the page. 

Make it yours but don't hold it to anyone else's standard of beauty. Don't compare your pages to other people's pages. They are yours.