Search YouTube for Justin Sung and watch a bunch of his videos.
If you made it through HS by paying attention in class, turns out you were doing that part right. Rapidly switching from watching a lecturer to trying to write everything down in shorthand is not necessarily better than just focusing on the lecture in the moment and processing some form of notes afterwards.
Many university classes provide lecture notes / digital versions of the slides and/or allow you to record audio during lectures. Pay attention in the class, then later that same day go over the slides again with some sort of system that works for you (sketch notes are good due to double encoding).
The biggest mistake many students make is assuming that rereading the textbook the day before the test is a good way to study. It’s one of the worst. Good reviews involve application/ creation. Try writing and answering what you think the test might ask.
TLDR: Watch Justin Sung’s channel.