Yes, now I have working yarn and my work is on the 12" needles. But, I should have joined my yarn while knitting onto my new needles. So I need to undue what I did and I need to join my work while knitting with a new piece of yarn. I guess I don't have to worry about switching needles since when I undue the work I can just keep it on my 12" circs, right?
I guess my first order of business is undoing one row of work which I always find difficult and tedious.