Congratulations on making it this far, Steve!
I actually just stopped on day 6 of a 7 day water fast
BradyCahoon.com and I would say that the most important thing is to listen to your intuition. It's great to ask for advice but perhaps 11:11 just means it's really your choice to make and either option has equal benefits. Perhaps 11:11 is a signal to you of the subjective reality that you're creating, and you have control of the outcome and it really doesn't make a difference either way other than which decision will make you the happiest.
As far as my personal opinion, I would say that it is a worthy goal, and as far as I can see has nothing but positive benefits as far as physical health is concerned. And socially - read your post on deeper social interactions again! Also, if you aren't drinking your juice at the same time your family is eating, just go sit and chat with them at the table anyway.
It would be so valuable to the world to have such a detailed report of the juice feast in matters of psychology as well as physiology. It would be something you could look back on with satisfaction. It would be one more thing to add to your 'have done' list (even though that's mostly ego, haha).
I say definitely yes! Definitely keep going if you can, but I completely support you and congratulate you whichever way you decide to go.
Love,
Brady