I just finished my first quarter of an accelerated BSN program and my advice is pay attention and take good notes during lectures. Your professors are literally teaching what will be on the exams. In my program, a lot of people spent too much time reading every detail of the book when the information for exams was given in lecture. Also, find a study habit that works for you. For me, it's flashcards. Study a little bit every day and you will nail your exams, trust me.