>>16700659
Dude are you studying the best books? You need to haul yor ass to the library, and then compare ten books and pick the one or two you liked the most.

Work through every example and problems of picrel.

And study problems from assignments, and last years' midterm/final problems. Make that your endgoal, and work through the books.

Seek help from peers or professor in office hours.

Read a good book like Riley, Hobson, Bence or ML Boas to learn what's going on. Watch good YouTube videos.

Learn through two pronged approach-

1. Understand it
2. Learn to solve your uni specific problemsets in tests

You will be great.