You're not a weirdo for being a full-time mommy, and you didn't really give up a career to be a mother. You probably do need approval from other people, especially women, because our American culture is weird. When my boys were young, I was asked by total strangers if I was their nanny or grandmother. After I laughed and asked why they wanted to know, they'd say things like....well they're helping you shop, and helping each other, and seem like such happy kids.....

Be assured that others do notice what you're doing for and with little K, even if it's hard to notice it yourself. When you're both older, there will be no doubts or regrets.