In last week's "I Am Cait" episode, Caitlyn Jenner left the Human Rights Campaign (HRC) meeting with a better understanding of the discrimination and challenges most transgender people face in the world.

She came away from the experience ready to help a new transgender friend named Blossom. She made plans with her producer to get Blossom on "The Ellen DeGeneres Show."

"We're gonna get her into nursing school, and we're gonna pay for it," Jenner said.

After an emotional afternoon at the HRC, Jenner and friends had fun at a roller rink. It was fun to watch Jenner so carefree and outgoing -- something we rarely saw from Bruce on "Keeping Up with the Kardashians."

On Sunday's "I Am Cait," the 65-year-old faced more personal challenges in her journey to life as a woman. She invited friends over for a pool party, but was reluctant to wear a swimsuit.

Her friend Jen Richards helped Jenner sift through a collection of swimsuits.

Richards chose a black one-piece swimsuit, but Jenner was unsure.

"I love my daughter to death, Kimberly, but this is kind of one that Kimberly would wear, do you know what I'm saying?" Jenner said. "It's probably a little more revealing in the cleavage department."

Finally, Jenner decides on a white one-piece swimsuit.

The "I Am Cait" producer asked, "Do you have any anxiety about doing this?"

"Putting on that bathing suit represents a lot to me," Jenner said. "Kind of scary because, you know, you're exposing yourself. I'm about as nervous as can possibly be right now."

Jenner put on the swimsuit, made her public debut despite high anxiety, and jumped into the pool with her girlfriends who cheered and gave her high-fives.

"I did it! I got the bathing suit on," Jenner said. "In the water, it was nerve-wracking, but it felt very freeing. And I did see my reflection in the glass door, looked pretty good."

Show producers posted this picture of Jenner in the bathing suit to Twitter on Sunday:

Later that night, Jenner's friends ask about her sexual preference. She has for 65 years only been attracted to women, and she responded to the extremely personal and difficult question with integrity.

"I can appreciate the male form," she said. "I don't know unless I got there."

For now, it seems Jenner is still focused on women. Recently, she expressed an interest in actress Candis Cane.

If you missed Sunday's "I Am Cait" episode, the one thing Jenner said that can resonate with everyone is "The ability to grow is directly related to the amount of insecurity you can take in your life."

Watch "I Am Cait" which airs Sundays at 8 p.m. ET on E!