WATCH: Kourtney Kardashian is freaking out about reaching a huge milestone in new 'KUWTK' season 17 teaser

Cape Town – The last episode of Keeping Up with the Kardashian season 16 just aired and now there's a trailer out for the new season.

In the 2 minute clip, Kourtney opens up to her sister, Khloé  about turning the big 40.

The mom-of-three celebrated the milestone birthday in April this year with a big bash with family, friends and ex-boyfriends.

In the sneak peek for the upcoming season Kourtney tells Khloé that she has some anxiety about her upcoming birthday and how she has been doing some analysis about her life and the choices she is making.

"It almost makes you analyse like, where you're at in your life. It's just giving me anxiety."

Khloe then asked her if she is happy to which she replies, "Sometimes I'm like, I'll just do stupid shit to distract from really thinking about stuff that is maybe more important. I don't know. But then half of me is like, live your life. Have fun."

WATCH THE FULL CLIP HERE:

The new season is set to debut later this year in spring.