Only follow advice from people who have the life you want, not from people
who have the life you have. They are not qualified to give you the advice you
need. You want to be Dooce? Talk to Dooce, not your sister-in-law.
Check out the rest of the Q&A, and take a look at her blog while you're at it. Be warned, though -- she admits that her language could maybe get her toddler kicked out of Montessori school someday. But her advice is priceless.