It is a cute username. I'm on my 4th day, I'm trying to emotionally stabilize myself through fasting.
I have a similar experience with mouth dryness and sleeping less than usual. But I think I'm in ketosis, since didn't feel much hunger today.
I'm not sure about those juices, they are 30% Sugar as I remember. I would rather go with my own smoothies.
For emotional support I'm using link that Crisb1 sent to me four days ago. It has e-mail from Larryb about fasting and Depression and general about life. I printed out and I'm reading it over and over, whenever I'm not sure what is exactly that I'm doing. It may work for you as well. Let me know how is going.