The teen daughter of a celebrity how-to-parent author — who illegally paid $50,000 to have a college proctor take an admissions test for her son — says she has finally learned to “forgive.

“I was definitely really sad and upset by my mother’s actions,” Lilia Buckingham, the 17-year-old daughter of shamed Beverly Hills marketeer and writer Jane Buckingham, told ABC-TV’s “Good Morning America” on Tuesday.

“I think we’re all doing a lot better,” the teen said, adding, “Obviously, I’m a big advocate for therapy.

“We’re all doing OK. It is OK to move on and forgive and learn from past mistakes,” Lilia said. “So yeah, that’s definitely an important life lesson that I learned through that whole experience.”

Her mother Jane pleaded guilty in May 2019 in the national college-admissions scandal involving infamous fixer Rick Singer and scores of wealthy parents, including TV actresses Lori Loughlin and Felicity Huffman.

Jane — a pal of Huffman’s — admitted she shelled out the dough to an ACT proctor to take the test for her son, Jack, a year earlier.

The illegally paid proctor scored a near-perfect 35 out of 36 for Jane’s son on the notoriously difficult college-admissions test.

Jane — the CEO of the trend-forecasting firm Trendera and author of such books as “The Modern Girl’s Guide to Motherhood” — later indicated she would be open to greasing the wheels to help her daughter, too, because the teen is “not a great test-taker,” the feds said in court documents.

Jane was sentenced in October 2019 to three weeks behind bars in the scandal.

Her horrified son has said in a statement that he had no idea of his mother’s illicit scheme and that he was “sorry” and “upset” by her actions.

“I know there are millions of kids out there both wealthy and less fortunate who grind their ass off just to have a shot at the college of their dreams,” Jack said.

His sister Lilia appeared on “GMA” on Tuesday to promote a new book she co-authored called “Influence.”