Porsha Williams Guobadia’s daughter Pilar is truly coming into her own. While discussing her new campaign with Nivea, the *Real Housewives of Atlanta* star, 42, opened up to PEOPLE about raising her 4-year-old daughter, whom she shares with ex Dennis McKinley.

“Oh my gosh, I have no control anymore,” Porsha says about styling Pilar. “I was just saying that I am all into princess dresses and any kind of dress, and right now she is against all of that. She wants to wear pants, and if I don’t hurry up and put some pants on her, then she’s like, ‘I want black pants.’ Then it goes to the [other] color, and that’s a whole other thing. So she’s very strong-minded about her fashion sense and everything at this point.”

With Halloween approaching, Porsha revealed that she and Pilar have a matching costume idea. “Okay so my daughter is 4, so you have to ask them a couple of times before you make a purchase because they’ll keep changing [their minds], but this year she has been really consistent that she wants to be a cat,” she says. “I’m trying to picture what kind of cat is it? And recently she said a cat with a cape, a super cat. So I’m like, okay, I got this. So I’m going to be creative and put together this cat costume for her, and me, of course, I’m going to be Cat Woman. That’s already in my head. We can’t wait to be Cat Women for Halloween.”

Porsha is partnering with Nivea for their new Nivea Skin Firming Melanin Beauty & Hydration Body Lotion with Q10. She was drawn to the campaign “because it is all for melanin beauties, and that is me.”

“We women of color, it’s hard for us to find a product that is made specifically for our skin, and I really love that Nivea has taken the time to do just that. This new lotion that they have works great and is formulated just for people of color.”

Porsha added that Pilar is a fan of the product too. “We use the same lotion,” she says. “I use this particular lotion on myself and my daughter. She has dry skin as well. It has argan oil in it, which is a really great oil for skin as far as deepening in the skin, strengthening the skin.”

Balancing her busy life, Porsha is no stranger to feeling overwhelmed. “Mommy guilt is something that I really had to deal with coming back from the pandemic because you have all this time with them and then all of a sudden, you go back to work,” she explains. “I would just say normally, when I have to leave her for work, if my mom can be there for me, it really really helps out. It helps me not to freak out like, ‘Oh I’m not around her as much.’ So having the love and support of my mom and my husband, who just spoil her like crazy, helps me with all the mommy guilt and really feeling overwhelmed.”

Porsha has also been enjoying her blended family with husband Simon Guobadia, which includes his five older children.

This past summer, Porsha appeared on the first season of *Stars on Mars*, spending a significant amount of time away from Pilar. “Stars on Mars was really difficult,” she tells PEOPLE. “I was on the show with Rhonda Rousey and I think her daughter at the time was about 18 months, so she was really getting hit hard her first time being away from her daughter.”

“And me too for that amount of time. It had to be mind over matter by the second week,” Porsha says. “And I said to myself, ‘You know what? I want to complete something that I started and I want to do it the best that I can do, and I want her to see this.’ So then that kind of became my mission as to be the best that I could be so she could see her mom being strong.”