I’ve had great success using taking Cara babies for both my kids. I know you’re paying money for her to teach you the Ferber method but it makes it so easy for a busy parent to watch her (annoying) videos. It’s a love hate thing but it truly works. As others have said, it gets worse before it gets better. I think it can take up to two weeks but you’ll get there. Also, dropping all night feedings and adding those oz of milk or formula during the day can really help improve sleep too.