I've just read the first thread from a poster whose child's finding it tough starting school. I know there'll be more.
So I wanted to tell you that this time last year I had to start this thread about my DD1. She really found the first few weeks pretty tough.
And then she got the hang of it. By the next term she was the life and soul of the classroom (and DD1 is, er, quite spritely, so you kind of notice that she's there). She's now bouncing around saying how excited she is to go back...
...so yes, I really feel for you now if you're going through much the same thing, but please rest assured that it really should get better.