I wish I had known the importance of a good study group. I didn't find this out until my second year of college. My experience is that a good study group is collaborative and can improve your study habits. Members of a good study group can bring/share helpful study tips and different members can bring different input on what is being studied, including different ways to process the information that is important to doing well in the class.
Hope you find this answer helpful. Best of luck to you!
Another thing I did, but wish I would have done more of - do not be afraid to reach out to your professors for any reason at all. No question is a stupid question. Your professors will feel more at use if you utilize them and show that your time is just as important as there. Professors realize when you participate, they notice when you reach out for clarification, and they appreciate any form of effort.
As far as academics go, don't be afraid to seek out tutoring or assistance from your professor if you're struggling! That's what they're there for.
Good luck :)
I wish I knew how important it is to go see one’s advisors and professors during office hours. They are a rich source of guidance and a source for future recommendations. Get to know them and let them get to know you well!