That's really weird. I am currently working on a manuscript that would be my first published to paper novel, which I'm pretty excited about.
Jake, I felt like that about my first book, but I do assure you that the day you deliver the manuscript absolutely final version to the publisher, you will find yourself wondering what people do when they are not writing a book.
It is exciting to see a copy of your book, but the real thrill is the first time someone asks you to autograph their copy.