I believe with all my heart that a happy and healthy mom is more important to the health and well-being of the child than whether they are nursed or formula-fed.

This is key and it's something a lot of people miss when they're so caught up in what's RIGHT and what's WRONG. As much as I hate the idea of giving my child formula, I'd damn sure give it to her with a happy heart if it meant the difference between her having a sane, rested, and healthy mama and her having a depressed, exhausted, stressed out mama. You have to take care of yourself before you can take care of anyone else. It's like the oxygen masks on a plane. You're no good to your kid if you're passed out.