You haven't failed Helen! You've done very well and your daughter does of course come first. I had to stop my dry fast due to that being too full on and me ending up throwing up bile after 5 and a half days, as well as being too much on edge to be a good dad to them in that time, and I knew it wasn't going to get better. So having read about Water Fasting in the mean time I rehydrated with fruit and then started this fast 2 and a half days later. But I've only been able to stay on it because the symptoms have been pretty much non existent so far. Certainly nothing bad enough to stop me taking the kids for walks or anything like that. Otherwise I too would have to reconsider my options once again.
You may be right about not preparing well enough for this fast also and if so consider that this fast will be a great preparation for your next, so if you break it well and continue eating healthily and not add to the toxins in the meantime, your next fast is bound to be much easier.