I'm In first year currently about to finish exams on 7 June but sticking around until 12 June however and I've taken the year relatively seriously as I want to get a 2:1 in each module as I want to go into law. Whilst I work for long and consistent periods in the library I don't think I do it at the same intensity as I did at a level. For example during Easter hols I literally did nothing, not even the non assessed course works haha. You can definitely get a 2:1 by making shortcuts on the reading and just getting to grips with the core content and being able to express it in a structured manner however I would recommend obviously doing all your reading! Second year I will take seminars and pre reading a bit more seriously than I did last year as its 30% of the degree