Parenting is a learn as you go kind of gig. Experience is definitely the best teacher. You can read every parenting book out there (and trust me I did), but they can only prepare you for so much. each child is different, each situation is different, and each family is different.
There is no one size fits all parenting formula. You have to find your own formula that works for your family. I send my kids to public school. That isn't for everyone. I used disposable diapers, some people use cloth, and some people use both. I breastfed both of my babies and used formula with my youngest when he needed it. You have to do what works for you and your family. Our parenthood formula is happiness. What works for one child may not work for the other and what works at one age may (and most likely will) change as they get older.