To edit your Course review, follow these steps:
Tap the Saved tab at the bottom of the screen.
Tap Courses.
Open the Course you want to update your review for.
Tap the three dots (⋯) in the top-right corner.
Select Course Description.
Go to the Reviews tab.
Tap Edit Review.
Your previously submitted review will appear at the top. Tap it to make your changes, then submit your updated review.