Kim Kardashian West says she would be LOST without having her sister Kourtney - to copy. The 35-year-old reality star admits she mimicked everything the mother of three who is a year older than her - did - when they were growing up And even now she turns to her for inspiration on raising her and husband Kanye West's two children, two year old North, and Saint who is nine weeks old. Kim told Britain's Cosmopolitan magazine - She taught me everything. I'm not really a fearless person, but I think Kourtney is the bravest. And In the beginning of Keeping Up With The Kardashians - when I thought little things were such a big deal -she made me realise they weren't. And just as Kim copied Kourtney when they were children, the star says things have “come full circle" as Kim’s little girl looks up to Kourtney’s daughter three-year-old daughter Penelope.