You remind me of me...I am a single mom to a 2 year old and 4 year old. Turning 40 next month. My 4 year old wakes up every night between 12 and 2 am to potty. I tried for two weeks once to go without caffiene, but I felt like I got run over by a truck the whole time. I just accepted that for now, coffee with raw cream is part of my eating. I eat as primally as I can, and if I eat somthing that isnt primal one day, I just try to eat more primal the next day. I accepted that b/c of lack of sleep over which I have no control, that my results just wont be as good as I want them to be but I must feel better this way than I would if I was eating SAD and getting no sleep...if that makes sense. Just hang in there. and plan ahead. Just little things like boiling eggs on Sunday for the week can help. Then you always have a grab and go breakfast.
It's just another day in paradise
As you stumble to your bed
You'd give anything to silence
Those voices ringing in your head
You thought you could find happiness
Just over that green hill
You thought you would be satisfied
But you never will-
Learn to be still
-The Eagles