D.M.
Okay, I would just take your own advice...get ALL those books and throw them away!
My son was a preemie, and I had to throw out ALL the timelines and expectations and just go with it. Babies are so amazing, and they do things as they are ready for them...with a little guidance of course.
It's TOTALLY okay to worry, but don't let it overwhelm you. Like Susan wrote, your little boy will be able to ready your feelings and apprehensions. So, relax and let him be the wonderful little person he's meant to be, and keep doing the best job you can!
My son is also my first, and I remember reading like ten books and taking notes and keeping a journal of things, and the first thing the NICU nurse who took care of my son told me was 'LEAVE IT ALL BEHIND' and write your own book on baby care.
I keep a journal of all the amazing things my son has done, and how awesome he is and that is something today I look back on and read with so many tears of joy. He's almost 2.5 years old and it's a miracle what our kids can teach us.
Best of luck to you!
Deanna