When you are selecting your images for a photobook, you need to be a little bit ruthless.
Here's my advice... Save all your favourite images into a folder. Then go back into that folder and remove anything that isn't absolutely necessary. Do this again a few days later. (And again a few days after that if necessary. )
Remember, you don't need several almost-identical photos in your book - choose the best one in a "series" (or the one that makes you smile the most), and ditch the rest.
You want your photobook to have space to "breathe." Too many photos forced into a memory book can be overwhelming, giving your eye too much to look at and therefore a lack of focus.