• Kim Kardashian graduated from her four-year Law Office Study Program on May 21 in what appeared to be a backyard ceremony

• In addition to her children, Kim's sisters, Khloé and Kourtney Kardashian, showed their support on her big day

• The ceremony comes three months after PEOPLE confirmed she took her Multistate Professional Responsibility Exam (MPRE), a test required in California for candidates without an accredited law school education before they take the Bar exam

Kim Kardashian has a big reason to celebrate!

On Wednesday, May 21, the reality star, 44, revealed she had graduated from her four-year Law Office Study Program in a series of videos shared to her Instagram Stories. The program took Kim six years, instead of four years, to complete due to COVID and work, PEOPLE has learned.

Kim gave fans a glimpse into what appeared to be a backyard graduation ceremony, as her closest friends and family gathered to celebrate the milestone in her legal journey.

"I finally graduated law school after six years!!!" she wrote over a video of her putting on a graduation cap on stage as speakers congratulated her for her achievements.

"It's an absolute honor to stand here today, not just as mentors, but as witnesses to one of the most inspiring legal journeys we've ever seen," Jessica Jackson, one of the attorneys sponsoring Kim's education said on stage. "Six years ago, Kim Kardashian walked into this program with nothing but a fierce desire to fight for justice. No law school lectures, no ivory tower shortcuts, just determination and a mountain of case log books to read."

"Over the course of this program, Kim has dedicated 18 hours a week, 48 weeks a year for six straight years," Jackson continued. "That's a total of 5,184 hours of legal study, that's time she carved out while raising four children, running businesses, filming television shows and showing up in courtrooms to advocate for others."

In a subsequent slide, Kim hugged her mentors as she walked on stage with a certificate of completion in hand. The crowd cheered when she held up the piece of paper and her children could be seen celebrating with her on stage.

CNN political commentator and friend Van Jones also gave a speech in Kim's honor, celebrating her accomplishments along the six-year journey.

Kim's backyard ceremony was an occasion for the entire family. In addition to her kids, her sisters Khloé Kardashian and Kourtney Kardashian Barker were also in attendance and shared how proud they were of all of her achievements.

"I am so proud of Kim. I just left her celebration lunch for graduating law school," Khloé said in a video posted to her own Instagram Stories. "I mean, I cannot believe this is years and years in the making. I'm so proud of her. This was just such a cool accomplishment, and I'm so proud."

Kourtney also marked the occasion with a selfie of herself wearing Kim's graduation cap on her Instagram Stories. "Supportive sister," she captioned the post.

Rather than attending law school, Kim — who never graduated college — followed a path only California and three other U.S. states offer to qualify for the bar by apprenticing with a practicing lawyer or judge. In 2018, Kim began an apprenticeship with a law firm in San Francisco.

Then in 2021, she took the “baby bar,” also known as the First-Year Law Student's Examination, and opened up about the difficult experience after passing on her fourth try.

"OMFGGGG I PASSED THE BABY BAR EXAM!!!! Looking in the mirror, I am really proud of the woman looking back today in the reflection," she wrote on X at the time. "For anyone who doesn't know my law school journey, know this wasn't easy or handed to me."

"I failed this exam 3 times in 2 years, but I got back up each time and studied harder and tried again until I did it!!! (I did have COVID on the 3rd try w a 104 fever but I'm not making excuses)" she continued in a lengthy thread. “I was told by top lawyers that this was a close to impossible journey and harder than the traditional law school route but it was my only option and it feels so so sooooo good to be here and on my way to achieving my goals.”

Kim's graduation comes after PEOPLE confirmed that she took the Multistate Professional Responsibility Exam (MPRE) in Los Angeles on March 27. According to the National Conference of Bar Examiners, the assessment is typically completed before the bar and a passing score is mandatory in order to practice law in California.

Kim revealed she was working to become an attorney and following in her late father Robert Kardashian Sr.’s footsteps in 2019. Although she has yet to take the bar, she has since spent the past few years working in criminal justice reform and helping several people commute their prison sentences.