"The nervousness and my anxiety has built up each week and it was so bad I felt like I was just cracking under the pressure," Bure, 38, told "Good Morning America" special correspondent Cameron Mathison.
Bure, the mother of three kids - Natasha, 15, Lev, 14, and Maksim, 12 - says she worried about letting people down if she did not score perfect 10s.
"I felt like when I wasn't performing at my best, I was not only letting myself down but I felt like I was letting my partner down," she said. "I don't like disappointing people."
Bure and her dance partner, Mark Ballas, sought help from sports psychology consultant and VH1's "Couples Therapy" host Dr. Jenn Berman prior to last Monday's episode.
Berman said the anxiety around being perfect felt by Bure on the reality TV competition is a sentiment women and moms can relate to in their own lives.
"There are a lot of moms out there who are perfectionists and I think it's really important to work on being more gentle with yourself," Berman said.
For Bure, her perfectionism caused her to seemingly halt mid-performance on the dance floor, as noticed by the show's judges.
"Every once in a while you get nervous and I don't know what happens you become like a whole different dancer," said judge Carrie Ann Inaba.
"When it comes to her expectations of herself, she's very tough on herself in a very perfectionistic way," Berman said of Bure. "She needed to know how to calm herself down."
Using tips from Berman such as deep breathing and reminding herself that "I can do this, I know my choreography," Bure wowed the judges with a sultry Argentine tango Monday night.
The dance earned the couple three 9s and one 8 for a total of 35 points. They ended the night in third place overall.
"The confidence was there, the lines were crisp … the game is on," said Inaba.
"Now we are in business," added judge Bruno Tonioli.
Bure said she plans to use the skills she learned from Berman again next Monday night, in the show's eighth week, and has advice for fellow moms struggling with perfectionism.
"People need to be open to their flaws and their insecurities and not be ashamed to talk about it," Bure said. "None of us are perfect. We all know that."