ahhh totally normal feelings , don't worry.
Shame when they grow up, my little newborn is now a chucky 1 year old!! nightmare where did the year go by...
As for the parenting , take a week at a time and like you say now, it's got easier and easier as you got used to being a mum, nothing will change , you will always learn and parent as you go along , you won't wake up suddenly one morning, not knowing what to do, it will just happen and evolve between you and your baby as you go along, and when you get to those stages then parent how you want to and feel right at the time (you don't have to turn into a fish wife shouting in the street - do it your way hun) - enjoy.