"It was so much fun to go on vacation with all of my friends and family. It was truly a week I will never forget," Kourtney wrote on her app

By Aurelie Corinthios
Updated April 28, 2016 03:10 PM
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Credit: Source Kourtney Kardashian/Instagram

It’s Thursday, so you know what that means – your weekly Kardashian #TBT.

This week, Kourtney Kardashian took to her website and app to share not just a photo (or 11), but an entire video in honor of #ThrowbackThursday.

“Since my birthday month is coming to an end, I thought a birthday TBT was appropriate,” wrote Kourtney, who turned 37 on April 18.

“One of my favorite birthdays was my 30th in Punta Mita, Mexico, at my friend [and Girls Gone Wild founder] Joe Francis‘ house,” wrote Kourtney. “We met for cocktails before dinner and everyone surprised me with a Mariachi band and piñata, which made the night. It was so much fun to go on vacation with all of my friends and family. It was truly a week I will never forget.”

In the video, Kourtney dances with her sisters Kim and Khloé Kardashian, as well as brother Rob and mom Kris Jenner.

RELATED VIDEO: Kourtney Kardashian Shares Throwback Photos in Anticipation of 37th Birthday

Meanwhile, this year the star celebrated her birthday in a slightly frostier climate, with a trip to Iceland with Kim and her hubby Kanye West, plus a few other family friends.

A source recently told PEOPLE that the reality star and mother of three is “doing great,” and that while “last year was very tough for her” following her split from ex Scott Disick after nine years, she’s acting “happier and confident lately.”

“It took Kourtney months to get to where she is right now,” added the source.