You have to cover a lot of course material; you are not clear, on which the topics carry more importance.
You have a lot of activities that take place in a day. Attending college, doing assignments, and socializing are some.
You may be a good performer in the class activities but to get good grades, you have to perform well in the exams.
Assignments are graded and contribute to your total scores. When you research and use the inputs, do make those of credible books and resources.
When in class or even when preparing for your exams, make a habit of making short notes. They help you in revising and grasping the topic immediately.
Your communication and behavior are important determinants when you appear in interviews.
Having associations and connections when graduating and studying abroad is crucial as once you are done with your studies, you may look for work opportunities.