Should you quit your day job to follow your dreams? How do you rein in an overbearing mother? Will you ever stop dating wishy-washy, noncommittal guys? Should you put off having a baby for your career? Heather Havrilesky, the author of the weekly advice column Ask Polly, featured in New York magazine's The Cut, is here to guide you through the "what ifs" and "I don't knows" of modern life with the signature wisdom and tough love her readers have come to expect.