This is sort of what I say to remind myself that having read some of something isn't a sufficient reason to finish it.
I pasted it into Google just now and found this article quoting it in a similar context.
Please talk to David McRaney (http://youarenotsosmart.com) to see if he'd be interested. His recent book, while far from comprehensive, has become the first place I look whenever I want to reference an accessible explanation of a particular cognitive bias.
Perhaps you are beginning to see how essential a part of reading it is to be perplexed and know it. Wonder is the beginning of wisdom in learning from books as well as from nature.
~ Mortimer J. Adler, How to Read a Book
While you're at it, you might as well practice getting up, getting dressed, making the bed, starting the kettle (or whatever you would do for breakfast), etc.
(Disclaimer: I haven't done this; I've only read about doing it.)