Story and bed time

Story is fast closing in on twelve months. She's fully housebroken (has been since six months), rarely chews anything up that she shouldn't these days (though she did do in a wooden spoon someone dropped on the floor), and does okay on the leash. Her sits and downs are perfect. Her recalls are okay, though I'd like them to be better. She does occasionally turn when called, tail wagging, smiling, and simply refuse to come.  If I give her a "down" she'll flop down on her belly and wait for me to come and get her. I think this is supposed to be a compromise.  She loves Frisbee and is getting the hang of catching it when it's tossed to her.  She loves the play yard and will spend several minutes at a time tearing from one end to the other, flinging sticks in the air, digging, etc.  Tracking/trailing is going well (more on that another time).
 

On to the questions--
 
The routine around here for many years has been to feed our dogs at 5:30 in the evening. Story is sometimes kenneled for a couple of hours afterwards largely because by the evening I'm ready for a brief break from her non-stop motion (Usually let her out about seven, if not before). Emotionally she is still very much like having a preschooler in the house. 

However somewhere between nine and ten in the evening what little self control she seems to have just evaporates. If she's going to fixate on shadows or moving lights, this is when we'll see it. If she's going to get into trouble for being aggressive/pushy with the cats or the other dogs, this is when it happens. We try to put her to bed before she falls apart, but she still sometimes gets there ahead of us.
 
She is the only animal/person in the house with an established bed time--and I'm beginning to wonder if it's early enough. I don't remember having to do this with any of our other animals past about nine months (but then, all of them were allowed full run of the house in our absence by then too and Story probably won't get that freedom for at least another year). It seems to me like we should be past most of this by now, but perhaps I'm still expecting too much too soon. Is this normal enough at her age? Or are we missing the bigger picture?