There is nothing like getting married to make you become a responsible adult in a very short time. Another thing is becoming a parent. I remember getting married feeling a mix of feelings. It was great, but a little overwhelming. Every marriage is different and the two people in the marriage must learn to work together to make it last. They need to grow together or they'll grow apart. Each still maintains the individual things that make them who they are, but the differences work together to complement and to strengthen. The same is true with families. It takes a lot of work and patience. Communication must be there. I know that you might get mad at me for saying this, but don't try to raise your kids be reading the latest Dr. Spock, Dr. Phil, or whoever. That would be like trying to be an actor by watching TV or a soldier by just playing video games.
I remember when we were expecting Nick. We knew that there was an estimated time of arrival, but that was it. It was a daily learning experience. Every day was something new. It has been the ultimate on the job training.