Kendall Jenner thinks modelling can be a "very lonely" existence.

The 28-year-old star is one of the world's best-known and best-paid models - but Kendall insists that her career has been more challenging than some people might imagine.

The brunette beauty said on Emma Chamberlain's 'Anything Goes' podcast: "I’m not gonna sit here and say that I’ve had the toughest journey. I think I’ve been extremely fortunate.

"But I also have had my own set of challenges, whether it’s [being] overworked or not getting a job that I would've really loved to get."

Kendall actually confessed to "crying [herself] to sleep" at night amid her struggles.

The reality star shared: "It is very lonely.

"I’ve had really dark nights where I’ve been in random cities and just hysterically crying myself to sleep because I haven’t been home in three months and I’ve been pretty much alone the entire time."

Despite her fame and success, Kendall has repeatedly questioned whether the sacrifices she's made have really been worthwhile.

She said: "There’s been a lot of definite moments where I’m like, 'What is going on, is this all worth it?'"

Meanwhile, Kendall previously admitted that she's been dealing with anxiety issues since she was a child.

But the runway star also claimed that she now feels more "stable" and "hopeful" in her career.

Kendall - who launched her own drinks brand, 818 Tequila, in 2021 - explained to Vogue magazine: "I don’t see why I shouldn’t be honest about it.

"In my career right now I feel really stable, really hopeful. But I’ve had a tough two months. I haven’t been myself, and my friends see it. I’m more sad than usual. I’m way more anxious than usual."