I'm blessed to have Ben, and I hold on to my experience with him and tell myself that the twins will grow up and reach his age, too. Ben is sort of the "finish line" or the "goal". I try to look back at those challenging nights during his newborn days and tell myself, if I survived during those days, then there's a chance I'll make it this time, too. When I am worried about my capability to feed for two, I tell myself that during Ben's days, I had more than enough milk so maybe this time I'll be enough for my two girls. These nights may be challenging but just as Ben eventually slept through the whole night, so will our lovely daughters. It's just a matter of time.
So here's sending hugs and mommy/daddy powers to all new parents out there. Lets all hold on and have faith that things will get better (sleep-wise and feeding-wise) :)