Don’t forget that a college semester goes a LOT faster than a high school course. The way you studied in high school will not work in college.
Also, to get A’s, you must see the tutors. You must get involved in study groups and the tutors can help you with that. Your study groups can break up the readings.
Tutors will help you to learn how to study for a test, take notes, highlight your readings, and work with the supplemental texts. You also need to review the online recordings of your classes.
You can also go to the writing center on your campus. They will review how you write to submit your narrative answers on tests.
Good luck! You are not the only student having these problems at this time in the semester.