<p>If you are looking to succeed in intermediate micro/macro, then you can look at past professors course websites. Check the syllabus to see which book they normally use and then look up some class notes to help guide your readings. A lot of times professors don’t actually follow the book (noticed this in the case for micro), so class notes may appear a little confusing. Once you start taking more mathematics-based econ courses, it’s going to become more difficult to rely on the book and not an actual professor. </p>
<p>Otherwise, brush up on some math and try to read some economic’s articles. It’s great to know theory and all, but you should at least know what’s going on in the world. You can always try to connect your classwork with recent news in the world. If news isn’t your cup of tea, maybe read some interesting books/papers to see what type of economics interests you.</p>