Dear Catherine,
First of all, please ignore the fearmongers that your month old baby is manipulative and that any thing she does now will continue for the rest of her life. It just ain't so. What's next, in-utero umbilical cord clamps to regulate feedings in order to get the baby used to a feeding routine before it's born?
My daughter didn't sleep until she was three months old. I mean, she only slept a few hours a day, not the hours that books and "expert" say babies sleep. I think she had a sort of pseudo-cholic, because at three months she passed an enormous amount of gas (it sounded like Billy Crystal's uncles all at one, if you catch my drift). After that she started sleeping very well. And she continues to be a good sleeper.
Before that gas passing incident, she wanted to be held all of the time, just like me when I was a baby. Since I had been reminded of my infanthood everyday of my life, and how horrible it was, I decided to be more understanding of my daughter. She wasn't being that way out of manipulation or meaness, that is just the way she was and I had to learn to work with it.
I used a Nolo sling so that I could get some rest and she would sleep in it on top of me. I also put her in her swing, which she really liked. Once she got rid of the gas, she would sleep very well in her crib.
Some kids are just high needs, and that's okay. Try a sling so she can stay close to you, and you can mostly have your hands free. She may move into her crib when she is three months old, or she may need you close a bit longer. One month old is too young for "crying it out"; you can start that at six months. Also, by that time she'll be telling you what she wants her schedule to be as far as naps and mealtimes. You can follow her lead if it works with your schedule.
So, try a sling and don't worry about starting a bad habit that you won't be able to break later on. She's too young for bad habits, she just knows what she needs. And you'll be the closer for it.
A.