DEAR HARRIETTE: My sister recently had a baby, and while I am happy for her, I can’t help but feel a deep sense of jealousy. My husband and I have been trying for a child for 10 years, and this is a milestone we’ve been dreaming of reaching. Seeing my sister achieve it so effortlessly – especially since she is five years younger than me – has been incredibly hard for me to handle emotionally.
Her b…