and appear that relaxed less than a week after having your fourth baby?
One of the school mums, arrived this morning (early naturally) with her new baby and 3 other DC (oldest 8yo). She looked immaculate hair and make up perfect, DC all perfectly turned out, happy and behaving. She was cheerful and chatty, time and thought to ask after other individuals on a personal basis.
She's interested enough in her DC's schooling to make sure they're doing well, but never pushy or competitive. She always has something to say to make you feel she's genuinely interested in you and I've never heard her have a bad word for anyone. She's thin again already too 
This isn't some middle class yummy mummy with paid help and 4X4 either. She'd walked the four of them more than a mile to school as they don't have a car. She's a SAHM and her DH works late shifts as a cook at a local (not swish) chain pub.
She has no family nearby, although she's lovely enough that she has lots of friends who would help her, she helps them loads too.
So how does she do it and why can't I?