I agree with @katliamom, if there is a heavy writing component, your writing skills have to be strong. It’s all about being able to get your point across. You need to go to the tutors; going to office hours helps, but you have to go almost daily to the tutors. It has to do with learning how to write and study for university level classes. Completely different from HS classes.
I noticed that you used the spelling: “memorise” in your post. Was that a mistake? Or, are you international?