The 20-year-old reality TV star is one of the world's most in-demand models but admitted she has days when she is down and the only person who can help is her mother, Kendall wrote on her website.
"When things get really bad, and I'm really down, I call my mom. She listens to me - which is so important - and gives really good advice. I feel lucky to have such a strong support system when things get rough and feel overwhelming," she wrote.