B.R.
Yes - I did the ferber method with probably all of my children (5). Some it worked faster than others, but I did it when they were all much younger 6-12 months. My daughter was difficult at 2 and did not want to stay in her room for nap or bed. I set up the normal routine at both times, 2-3 books and then bed time. I started with sitting on her bed until she fells asleep (about 4-5 days), then I moved to the floor beside her bed (about 2-3 days), then outside her room with the door open where she could see me. Within 2 -3 weeks she was fine. I closed the door and sat outside at the end and as long she could hear me respond, she felt safe. I had my own book with me at all times to read and pass the time. I felt less frustrated since I was enjoying a book myself. Just remember, it won't last forever. Before you know it, it will seem like just a phase. My husband was gone a lot too, and I had a newborn, so I know it is tough - Just try to stay consistent if possible. I the newborn needs to be with, so be it. 2-3 weeks may seem like eternity at the time, but if it works, it will be worth it. Good Luck!