Being a supermodel like Kendall Jenner seems like a really glamorous, exciting job. You’re flying all over the world, wearing the most beautiful clothes, and seeing your face on billboards and magazine covers, but the model is now opening up about the downsides of her career.

In a new interview with Emma Chamberlain for her podcast Anything Goes, Jenner shared that though she acknowledges she hasn’t had the “toughest journey” to modeling superstardom — she was signed as a teenager and starred on a little show called Keeping Up With the Kardashians —that doesn’t mean her career hasn’t had its hiccups.

“I’m not going to sit here and say that I’ve had the toughest journey. I think I’ve been extremely fortunate,” Jenner shared, “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.”

She also said that the job can be very “lonely,” what with all the travel and jet-setting from one photoshoot destination to another. “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.”

Jenner also added that she misses out on a lot of important moments at home because of work and that sometimes, she questions her career choice entirely. “There’s been a lot of definite moments where I’m like, ‘What is going on? Is this all worth it?’”

The model has long been open about her struggles with anxiety and panic attacks and told Chamberlain that she depends on things like walks, digital detoxes, and time in the water to bring her back to center.

Despite the lonely moments and long days on set, Jenner is thankful for her career and what it’s given her. “I probably would’ve never traveled the way I have or the amount that I have had I not had this job. I’ve met a lot of amazing people,” the model said. “I feel very grateful for my experience.”