DD1, summer born, has suffered such a slump in confidence since starting Year 1, and it has just gone from bad to worse as the year has progressed. This evening she went to bed listing all the things she feels she can't do, and it's so sad because she's basically rattling off the end of year 1 expectations for reading, writing and maths. Somehow, she knows what they are.
She absolutely loved every minute of Reception, and there were no concerns about her learning. However, after only a few weeks in Year 1, she developed strong anxiety about going to school. Having started off in 'top groups', she was rapidly demoted down the ranks at the rate of one group per term, and now she is in a small supported group for both English and maths. Her opinion of herself as a learner is so low ("There's something wrong with my learning, mummy." "I'm one of the ones who needs help in every lesson."). Stuff she could do easily in Reception have become problematic; she reverses numbers and forgets correct letter formation as she squirms with anxiety 
.
I have tried to stay upbeat and optimistic, focusing on maintaining self-esteem and gently addressing this new anxiety while doing the regular homework plus a few bits her teacher has asked me to work on, but I am finding it increasingly difficult to see DD feel so crap about herself. I am also wondering if I am missing a trick somewhere. I am a primary teacher, albeit working at the opposite end of the primary range, and I wonder if my vision is clouded by a misplaced feeling of collegial trust, believing that the school has DD's back and would pull out all the stops to sort things out if they thought something really was wrong (as would happen, without a shadow of a doubt, at my school). If this kind of downward trajectory had happened to a child in my class (not just making no progress, but actually regressing), I'd be so worried.
Any KS1 practitioners or parents with similar experience who could offer insight and perspective, please?