>>8134I am not a burger or a native speaker. To me "preparing for uni" sounds as if you were not in university yet and were preparing to start it. If it is just assignments, I would say you are preparing for class. But maybe this is just something coming from my native language.
But yes, that was what helped me the most. It's also nice if you have all your course requirements, dates and deadlines organized, I would always start my semester collecting these and putting them in my calendar. Most of these cannot be done in the last minute and many of them needs to be done for the same week (for me it was usually the middle of the semester that was always full of tests and assignment deadlines). If there are subjects that you are enthusiastic about, or even just don't dread, it can be very helpful to do the assignments as early as possible to free up more time for the other assignments.