My mindset was: understand concepts from the lecture slides as quickly as you can, then drown yourself in practice questions. I repeated the past exam paper questions at least 3 times each (from 1992 to 2008). To be honest, a lot of what I learned was through trial and error. I always asked for help with a question when I needed it and basically started doing questions at the start of the semester. Also, I had an epic cheat sheet made buy a friend's friend who got 99% (my friend ended up getting 100%), so that was definitely helpful. Oh, I also had a look at the questions from the text book, but didn't really much of my time on them. About 95% of my time was spent solely on past paper questions.
The most important thing for physics is this: applying your knowledge of the concepts to past year questions.
This website helped heaps:
https://www.physics.otago.ac.nz/teaching/PHSI191/PHSI191_exams/
I also used another one that had questions from 1992-2005 but I've lost the link to that xD