Perhaps one week of kindness is more achievable. Less daunting. Just a week.
And only one rule: Do not throw up.
Simple enough, except that of course that one simple rule is dependent on the fulfillment of 10 million other rules, such as:
Do not eat muffins
Do not eat toast
Do not eat lollies
Do not eat unplanned foods
Do not overeat at meal times
Do not have dessert
Do not eat at somebody else's house
Do not eat at your own house
Do not reach a feeling of fullness
Do not allow yourself to get bored
...all of which lead to an inevitable downward spiral into purging.

But I have to have to HAVE to do this
The cracks in the corners of my mouth never heal
My skin is horrible
My teeth hurt
And I'm FAT
I lose so much time to this beast. Between long shifts at work, all I do is binge and purge and not get enough sleep. It is easier than facing the prospect of finding and building my own life. It is a safe and secretive.
I hate it so much, but I'm increasingly realising how much I love it.
How much I need it