Kim Kardashian says being a parent is “the most challenging thing” and has had nights when she cried herself to sleep. The US reality star, 42, said becoming a mother had been “the thing that has taught me the most about myself” but that there was “nothing that can prepare you” for the experience. Speaking on the On Purpose with Jay Shetty podcast, Kim discussed personal topics including parenting, healing trauma and navigating the dating world as a celebrity.