In my short experience, babies' needs change so much over the first part of their life that there is no way they can develop 'bad' habits. I agree with what Jodi said about CC and rebuilding trust. I'd recommend reading Pinky's articles on sleep in the articles section of this site. I have found her advice to be be both useful, practical and empowering as a parent. She says that your baby is the book and that only you can know what is best for your child. Their is no guilt or set routine that you 'should' be following.

It's quite a journey...you'll get lots of support on here. Good luck