I totally feel your pain! Day 59 here and I am NOT motivated what-so-ever. I'm sick of juice, too. Oh well, I know it's just a phase and I'll get over it. After all, it's not like I'll be fasting forever, ya know?
I hope you start feeling more motivated, soon. :) You're not alone girl!
Oh and about the cleansing, I don't know if everyone has this hard junk in their intestines. (?) However, if you're not getting much of anything out with the method you're using, I'd give an enema or two a try.
I do daily enemas for 3 days, then drink a lax tea at night on the third day, fourth day no enema and then start over again on the fifth. Seems to be working. In previous fasts I did an enema every day. I've gotten a little sick of them this go around.