The reality star admitted that she still doesn't "have a day without tears" — but vowed that she would "get there"

She opened up about the "heartbreaking" split from the father of her 4-year-old son for the first time on the Dec. 2 episode of her and her sister's podcast

"I didn't know that your heart can break that many times in such a short period of time," Nikki said of her split

The highly-anticipated new season premieres Jan. 9

In her Sept. 11 divorce petition, Garcia requested sole physical and legal custody with Chigvintsev getting supervised visitation