Kylie Jenner has 140 million followers so you could say she's pretty influential. Oh, and she's also casually the world's youngest billionaire [1]. From private jets to business ventures to custom designer clothes, on paper, she's got it all. But Kylie wants you to know that's not all entirely true. The 21-year-old penned a short letter on Instagram opening up about her issues with anxiety, losing friends (possibly referring to her former best friend Jordyn Woods [2]), and how hard it is growing up in the spotlight.

In a photo of a sunset taken while on holiday in Turks and Caicos [3], Kylie added the caption: "I'm proud of myself, my heart, and my strength. growing up in the light with a million eyes on you just isn't normal. I've lost friends along the way and I've lost myself too sometimes. my first tattoo was "sanity" [4] to remind myself everyday to keep it. I've struggled with anxiety my whole young adult life and after my baby i dealt with all the internal ups and downs. my life is not perfect and what you see here on social media is just the surface."

Her sisters Khloe and Kourtney Kardashian were there to support her in the comments, "Amen sweet sister!!!! I am proud of you always 😘", "I am proud of you ✨ let it out", they wrote. But fans in the comments are torn on agreement about Kylie's words. Regardless, despite her upbringing and status, one thing is for sure, Instagram often portrays an extremely polished version of people's lives without showing the struggle along the way – even for a billionaire.