She later obtained a master's degree in English literature and lectured in the drama department of Rhodes University in Grahamstown.
[7][8] Over a span of fifteen years, De Wet wrote twelve plays, five in English and seven in Afrikaans.
Her play Yelena won the Vita Award for Best Script in 1998-1999, and Drie Susters Twee, an Afrikaans adaptation of the Three Sisters, was named Best Production for the same year.
De Wet's play Diepe Grond is a notable work that premiered at the Market Theater in Johannesburg, a venue known for its opposition to apartheid.
The play serves as a critique of the moral decay resulting from the country's racist policies.