back to square one

I am sad to say that we seem to have had a bit of a set back with Kate. She was doing really well when school first started, sleeping in her bed at night instead of on a mattress on the floor beside my bed, getting through her mornings without melting down, and most of her evenings too. However, slowly but surely we seem to be back where we started again. Evenings have been particularly frustrating for us, we have had no  down time at all in the evening without Kate, and she has been throwing big tantrums every night before bed, that last well into the rest of the evening before she finally exhausts herself and falls asleep, usually beside me on the couch. Mornings have been not much better, stressing about what she is wearing, what she wants to eat, and taking out anger on her sisters and me. I am trying to figure out if we have stopped doing something right, or if this is all in response to something else that is going on with her that I haven't picked up on yet. Today she did pretty well in the morning, she got up and waited for both the daycare girls to come and then got on with her morning without too much hoopla. I will have to try changing up her evenings in some way, maybe having her take a bath every night right after supper or something, to break up the pattern she is in right now. Something is wrong, but I havent' been able to put my finger on it yet. I did have a talk with the other girls this week, just to let them know that I'm aware how hard it is for them at times too, and that I'm trying to figure out what's wrong, so I can help Kate cope with her emotions better. They are so good. Anyway, I knew it wasn't something that was going to magically just go away, that it would take time and I just have to stay positive and continue working with her to improve her coping skills.