Featured: Katie Couric. “But don’t wait forever to find your bliss, or you may find yourself at 30 living in your parents’ basement eating microwave popcorn and binge-watching reruns of “The OC.” And while it might be nice to have your mom or dad make your favorite casserole or do your laundry, don’t wait too long to get going. As Einstein said, “Vision without execution is hallucination.” …