The Ferber Method

Has anyone done the Ferber method? My 6 1/2 month old is waking up 8 times a night just wanting to nurse back to sleep!! I’m losing my mind! I’m so exhausted and it’s making me not be the best mom I can be. If I lay her in her crib asleep she’ll just wake up, so I need her to be able to fall asleep in her crib by herself. I HATE letting her cry though and it breaks my heart. I’m at my wits end though and don’t know what to do. Also she sleeps in our bed and id really love my bed back with my husband :/ I don’t want her sleeping there for over a year