She said she followed up with the November/December private WASSCE exams and failed as well.
Yvonne added that she wrote the exam the following year and passed, enabling her to attend the Central University College.
She revealed this during a personality profile with Lexis Bill on Accra-based Joy FM Thursday night.
Yvonne explained that she failed initially because she was not serious in school.
In the wide-ranging interview, the beautiful actress also denied entering into a romantic relationship with Nigerian rapper, Ice Prince.
Yvonne went on to add that former President Jerry Rawlings was her favourite Ghanaian politician.