Joy, excitement, and unfathomable love? Those are the new-mom emotions you're prepared for. Identity crisis? Not so much. "The best example you probably have of what it means to be a mom is your own mother," says Gail Saltz, MD, a psychiatrist at New York-Presbyterian Hospital, in Manhattan. "And even if you had the greatest one in the world, there are bound to be things you don't want to do just like she did, which can leave you feeling guilty and anxious about the choices you're making as a parent." It can be a huge relief, then, to talk to other moms, Dr. Saltz adds. Aside from getting the understanding and sympathy you crave, you'll also see that you can make the transition from you to you-with-a-kid -- just like they did. What follows is expert advice and it-worked-for-me wisdom for eight common new-mom stresses.