As you may have already discovered, college reading is much more demanding and challenging than what you encountered in high school. You may feel unprepared for the amount and difficulty level of the readings, and the strategies that you succeeded with in high school may no longer work.
Increasing your comprehension and retention requires a deeper level of engagement and interaction with texts. You can trick your brain into doing this by implementing active reading strategies. This document lays out a few such strategies (though it is by no means exhaustive!).