Answer:
There can be many answers to this question. Typically, you would need good note-taking, listening, and memorization skills. There are certain things that can help with improving those (such as websites like Quizlet, Quizziz, etc.), but academically, those are the three main skills. You should also learn to ask for help when needed, because if you're really struggling with something, you'll see your grades declining fast. Resources such as Quizlet, Slader, and even Google in general can help you answer academic-related questions if you're ever stuck.