Confusion

So, five months ago I received an Amazon Kindle for father's day.  I thought I would jump right into it, but I still have the urge to go to the library and take our more books.  I'm not sure why or even if this is about the Kindle itself.  Is it the feel of the book in my hands?  Is it the ability to get the book for free, and just take it back if I don't like it?  The selection is bigger than the free books on Kindle.  Or is the bigger issue that I'm confused about my life in general with my upcoming retirement and my excessive worrying about the future that I cannot control?  I guess when I start writing the answers instead of the questions, I'll know.