My DD was an absolute dream until she was around 7 months (she's now 3 weeks away from her first birthday). Since then she has been a nightmare, we went through 2 months of rocking her in a buggy to get her to go to sleep at night, she won't nap in her cot, screams if you put her down awake and I mean screams like she's being attacked it's truly awful nothing can bring her back from it. I'm lying listening to her screaming just now as she woke over an hour ago and will not go back to sleep, I've tried everything so now I'm leaving her to cry (I feel like the worst mother in the world) but I just don't know what else to do. I've rocked her, cuddled her, sang to her, lay on the floor beside her cot. She's starting to calm down but I can hear little sobs my heart is breaking. I'm I doing the wrong thing letting her cry? Can anyone offer any advice please?.x