My baby is 7 months and has got into a pattern of waking through the night. Doing controlled crying is impossible as she screams when you go to leave the room again and ends up making herself sick. I also find it very difficult to get her to go to bed awake, she screams as soon as I set her into the cot. I have tried everything and I am at the end of my tether, I can't remember what it is like to have a full nights sleep, please help!