Now, just think of each day. Do NOT think about tomorrow. Just get through ONE day at a time.
You are now coming to the point where your body "switches gears" to true ketosis: where it finally realizes you are not feeding it, and it must switch over to the fat-burning process to burn "fuel" for energy.
Don't give in now. You can do this.
You're doing great.
*edit* Your extra time? Read and educate. Read up on fasting. I would also suggest reading up on the Iodine board - but that's only because most are deficient...but I won't push anything on you - it's just a suggestion.
If you are bored, and can't sleep, (I needed MUCH less sleep when fasting) then I highly recommend that you listen to this two-hour audio - I found it fascinating: //www.curezone.org/ig/i.asp?i=21726