Congrats. You are correct that your life will never be the same. I have 3 kids and I don't want to go back to where you are, but I also wouldn't change it. Your biggest obstacle is keeping your marriage strong. Loving your kids comes easy. A very successful and nearly retired business man once told me that the best way to be a good father is to be a good husband. If you do that your wife will be happy and be a good mother and your children will always respect you and the misses. Enjoy and congrats again.