время прошло в длинных не отличающихся друг от друга волных (??)

At school the work timetable was defined for us and teachers made sure we fitted all that was required into the school year. At university I was at sea. Time came in great undifferentiated swathes. What to do with it all? With 168 hours in a week – or 105, allowing nine a day for sleeping and eating – how many was it reasonable to spend on study?

Ok.... now does my Russian say that? 😅

не очень понимаю откуда "волны", но к sea подходит хорошо.
- большими волнами

👍🏼🙏🏻