Thanks for reminding me Srinath. That's another point I forgot to mention. 10kg in 10 days is highly unusual, and has never been my own experience during a water fast. After day 4 or 5, weight loss is usually of the order of around 0.25 - 0.30kg per day.
If you think of it in accounting terms, you are therefore effectively in 'credit' as far as weight loss is concerned to the tune of around 3.50kg at least. That's equivalent to around 12 days weight loss for most ppl who water fast. If you mentally 'reallocate' that weight loss credit to your current deficit, you are actually well on course to achieving your goals.