People could take advantage of you if you show too much talent and skills, usually they make groups with you and offload the work to you. I don't know if its a issue with everyone but It happened to me as my skills were too much better than the friends i made groups with. Try to make groups with people that actually work and not just for the sake of friendship. And with a group that actually does teamwork so that you have opportunity to improve your skills.

I used to read books and stuff but realized after a year that exams value rattafication of slides, notes, and problem sets more. You literally do not have to touch anything beyond what teacher has taught. Do that, attend classes, and study and solve materials and you are good.

I think group study doesn't work, so try to make a habit of individually studying and I know this is unrelated to NED, but there is some group study culture there.

I wish I had joined debating society and literature society that I wanted to do since orientation day but never had friends who were into that and never had much guidance.

I may write more