"The fact that I was on the cover of any Vogue was mind-blowing, but the September Issue was beyond anything I could've imagined!" Jenner wrote. "I can't wait to see where 2017 takes my career, but I know I have big plans!"
Having a demanding career means Jenner misses out on time with her family, which she called “the hardest part” of the job.
"I miss my sisters, the rest of my family and my friends so much when I'm away," she shared. "But, it makes the time we have together that much more special."
Another memorable milestone for Jenner was turning 21 in November, and celebrating with two epic birthday bashes.
"Turning 21 has been a ton of fun," revealed the Keeping Up With the Kardashians star. "I love that I can now drink rosé on a beach in Miami or check out cool bars in new places. And, you know I've been sipping on my signature drink now that I'm legal!"