R.K.
Well, I guess it's all in what you value most.
Some prefer to keep life as close to what it was before they had a child as possible and some like to submit to life with children all the way.
Some worship schedules and rules and boundaries while others prefer focusing on the science of relationships, trust, and nurture; a few are amazing and are able to combine the two.
Myself, I'm about creating trust with my children. I want a FIRM foundation that my children know I AM there whenever they need me: WHENEVER that is. I also like them enough to have a willingness to be with them even if they JUST want me, too. I will gladly loose sleep for anyone I love, especially a wee one without skills to fully communicate. That is not to say I don't need and LOVE (and boy do I mean LOVE) my sleep.
I'm not into training children like pets or breaking them into submission. I'm not looking for robots that need to be programmed and have a deficit in the ability to think for themselves. My method isn't always easy and convenient but I have 10 very independent, well thinking, lovable, passionate, creative children of whom I've never employed the philosophy of abandonment to illustrate boundaries of time or space.
The first year is about building a foundation of trust for the child toward you. You should be responding to your child, I mean, it goes against everything in you instinctual to not care for your baby; it's anti-intuitive which may produce an immediately desired result but also lays the footwork for others that you may not desire. Babies aren't the age group you practice tough love with; that's your stray teenagers...and you're going to need the backup of being able to say you've never just let them suffer for your convenience. (They will reach back that far--sneaky little devils; nieces, nephews, neighbors, friends, and my own teens have taught me that nugget)
Seriously, through out the books, stop listening to other people, and just go with your own intuition. NO ONE knows your baby, NO ONE except you. Trust that you are a good Mom. Don't let people tell you that you're "catering" to your child as if it's a bad thing, and stick to the values and boundaries you really feel married to.
Also, there are so many more reasons for nursing and feeding a baby than simple nutrition. And babies DO NOT eat out of "habit", that is simply untrue!! If you want to make a change in the diet, talk to a nutritionist; a specialist in diet who has studied nutrition and chemistry for years, rather than the run of the mill doctor who took ONE semester of basic nutrition way back in pre-med.
One more thing: the best way to teach someone how to sooth is to demonstrate soothing...just like any other thing. There is a huge difference in not asking for help because of mastery versus not asking for help because of futility. One would be wise to ask WHY and HOW a certain method of doing anything works and WHAT are the secondary results (increased bonding, increase ability to dismiss, clarity, confidence, anger...anything) and are those acceptable. I make my best decisions when I actually use that litmus test...that, and, do I feel like I'm coming from and conveying Love when I'm doing or saying this or that particular thing...