Kylie Jenner suffers from anxiety when she's not working.
The Keeping Up With The Kardashians star loves to be kept busy with her business and looks up to her mother Kris Jenner's entrepreneurial skills, citing her as a "major influence".
She explained to PEOPLE magazine: "Mom told me I was great with business, and I should get involved with that. She is an amazing businesswoman herself who has been a major influence on me over the years. So I took her advice.
"When I am not working, I get anxiety. Already, I am expanding my lip kits and developing new products like eye shadow, eye liner, concealer and bronzer. When I get up in the morning, I can't wait to start working!"
The 18-year-old beauty also feels she has become more "introverted" since she found fame.
She shared previously: "I'm not a shy person and when I was younger I was so crazy. Every time my mum would have people over, I'd make everyone come in and watch me do my dance moves.
"It was so wild. And I feel like growing up in the spotlight, it just made me a more introverted person. Now I can't walk in a room and talk to people."
"It's weird. I'm super-reserved and introverted but I know everyone knows who I am."
- BANG! Showbiz