I also found that we used to have a very random routine, but around 7/8 months it was almost as though DD NEEDED a bit more structure and routine.... it can still be "infant-led" to a certain degree, so you don't feel like your lives become imprisoning (I'm not a routine person myself).

And what I learnt too, was that after getting "out of whack" that sometimes we just needed to be disciplined in a pattern for a week or 2, then once settled again, the routine could be played with....

I agree with many others too.... she sounds overtired and I think 2 sleeps is pretty important at that age.... my DD was still doing 3 at that time and didn't drop to 2 sleeps until around 9ish months...

But as they say... they are all different! All the best.