Welcome to the world of advocacy. Yep, there are lots of times when crawling under the bedclothes is exactly the only place you want to be. In truth there are times when it is where you should be, all things are easy when you are well rested. Does amazing things for reducing anxiety.
There were a few things that struck me from your post. The most important is, don't judge your child's ultimate ability in math until after they have been allowed to progress past math facts to math concepts. Some kids do great learning the automaticity of time tables etc that schools require young kids to demonstrate but they don't necessarily get algebra or trigonometry later. Your DDs true capacity for maths may not yet be visible, at least it is too soon to tell.
If you look at the whole picture and decide your DD needs a grade skip work on establishing how areas of relative weakness will be addressed.
