Luke Perry's Daughter Sophie, 18, Thanks Mom Minnie for Being 'the Rock for Everybody Grieving'

"She's the toughest and sweetest and most amazing woman I or anyone else has ever met," Sophie Perry said about her mother, Rachel "Minnie" Sharp

As the world grieves the loss of Luke Perry, his daughter Sophie is thanking her mother Minnie Sharp for holding the actor’s family together.

“You all know my dad is a super star, but I just want to share for a moment that I got really f—ing lucky in the parental department because this is my mom,” Sophie, 18, began in an Instagram post on Friday. “Minnie. Who also happens to be my best friend. Wow, how cliche, I know.”

Luke Perry and Rachel ‘Minnie’ Sharp. Tammie Arroyo/Getty

“And she is the rock for everybody grieving in this family right now. She’s the toughest and sweetest and most amazing woman I or anyone else has ever met,” she said captioned the photo of her and her mother, whose real name is Rachel Sharp.

Sophie Perry/Instagram; Inset: VALERY HACHE/AFP/Getty

The Beverly Hills, 90210 actor died Monday at age 52 after suffering a massive stroke days earlier.

“How did I get so lucky to have two icons for parents?” she continued. “I love you mom and I could not get through this absolute s— situation without you.

She concluded the heartfelt post with a reference to National Women’s Day: “Oh. And I was just informed it was national women’s day, how fitting for a post on my kick a– mama. #happynationalwomensday.”

Luke married Sharp in November 1993. A onetime furniture saleswoman, Sharp had dated Luke for two years before they exchanged “I dos” in a private ceremony at the Four Seasons Hotel in Beverly Hills. Their wedding was attended by 50 friends and family (including 90210 costars Jason Priestley, James Eckhouse, and Brian Austin Green, as well as Perry’s mother and stepfather, Ann and Steve Bennett).

It was the fact that she had a life outside of Hollywood that made her the right fit for Perry. “She will be good for Luke,” 90210 creator Aaron Spelling told USA Today at the time. “She’s not in show business. Her head is on really straight.”

Luke Perry with son Jack and daughter Sophie.

The couple divorced in 2003 and shared joint custody of Sophie and son Jack, 21, now a wrestler.

“He was very protective of his family,” a source told PEOPLE earlier this week. “As soon as he became a dad, that was it. It didn’t matter that he was a huge star on Beverly Hills, 90210, or what came after. He always knew what was important.”

On Feb. 27, Luke was hospitalized after suffering a stroke, and after paramedics were dispatched to his home in Sherman Oaks, California. A source told PEOPLE he never regained consciousness.

The actor remained “under observation” for five days but died on Monday, March 4.

“Actor Luke Perry, 52, passed away today after suffering a massive stroke,” read a statement from Perry’s rep. “He was surrounded by his children Jack and Sophie, fiancé Wendy Madison Bauer, ex-wife Minnie Sharp, mother Ann Bennett, step-father Steve Bennett, brother Tom Perry, sister Amy Coder, and other close family and friends. The family appreciates the outpouring of support and prayers that have been extended to Luke from around the world, and respectfully request privacy in this time of great mourning. No further details will be released at this time.”

Sophie previously paid tribute to her father one day after his death, sharing a photo of her and the late Riverdale star to social media.

“I cannot individually respond to the hundreds of beautiful and heartfelt messages, but I see them, and appreciate you all for sending positivity to my family and I,” she continued. “I’m not really sure what to say or do in this situation, it’s something you aren’t ever given a lesson on how to handle, especially when it’s all happening in the public eye. So [bear] with me and know that I am grateful for all the love. Just, being grateful quietly.”

In lieu of flowers, the Perry family ask that donations be made to Fight Colorectal Cancerthis link opens in a new tab and St. Jude’s Children’s Hospital.