Caitlyn Jenner Twirls in a Wedding Dress and Meets Hillary Clinton in New 'I Am Cait' Promo

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"Coming into my womanhood is a work in progress."

Caitlyn Jenner is gearing up for season two of I Am Cait -- which kicks off Sunday, March 6 -- and there are plenty of first-time moments ahead for the 66-year-old reality star.

In a new promo for the E! reality series, the former Olympian is seen twirling around in a gorgeous lace wedding gown, admiring her new California driver's license, and even sharing a brief meet-and-greet with Democratic presidential hopeful Hillary Clinton.

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But it looks like season two isn't just going to be sunshine and smiles -- Caitlyn's co-stars, Jenny Boylan and Candice Cayne, are there to keep her in check and make sure she's using her newfound fame to help the entire transgender community.

"People need to know that you're fighting for everybody, not just the pretty ones," Jenny bluntly says to a wine-drinking Caitlyn.

"I need to evolve as a person," Caitlyn's voice echoes over the 15-second trailer. "There's just too much at stake to get it wrong."

MORE: Caitlyn Jenner to Publish Memoir Chronicling Journey From Bruce to Caitlyn

At the Winter TCA Press Tour earlier this year, Jenner explained that season two is all about traveling the country and meeting people -- something she feels differentiates I Am Cait from her family’s reality show, Keeping Up With the Kardashians.

“I wanted this show to be about the issues,” she shared. “Sure, we all love good clothes and all that kind of stuff but I really wanted the people to get to know all of my girls and everybody that's involved with the show. I love my kids, I have a great relationship with all of my children, but this is a different show. This is about serious issues and so I wanted to somewhat keep that distance.”

Season two of I Am Cait premieres on Sunday, March 6 at 9 p.m. ET/PT on E!.