Nicci - you are really struggling at the moment hey. I completly understand everything you have said. I got the 'just need something' which I knew really wasn't food. I can do SW to loose rest - of course didn't work.
With CD if you can stay focussed for a week or so you get into a rythum, and yes you feel in control. Maybe it is the control thing. If you are 100% ss'ing then you are in control of your weight and future life.
When I felt a bit like this on my last 'fall of wagon' it was lots of things and not just diet. Needed to get on top of work, house, our job, diet, excersise plan, that was changing, this wasn't sorted.
My advise - for what its worth... take a deep breath. There is a lot going on at the mo. (reading prior posts). There is a lot that is still uncertain, unsorted and unfinished. Lots of this is out of your control so just have to take each hour as it comes and ditch worry about anything that will be forgotten in a month (eg haven't cleaned the bathroom, ironing).
Now all un-neccessaries ditched and riding the stuff you can't control anyway - there just leaves you. You can control this and move yourself where you want to be. Take a deep breath and ask yourself how much you really want this.
Now you've read this, go searching all your fav. clothes stores and look at all the nice clothes you could wear to college.
Don't let the little monster 'can't do this' beat you. Think positive, I have done this and I can again. 1 week, 1 day down already!!!
Picture yourself in that coat in six weeks time, make picture big and bright with sounds and live that picture for a whole minute everytime you wobble.
We will still be here in 5 weeks at the finishing line, I have faith in you, but you must have faith in you also.