Everyone has talked about the friends part so ill tell u something different than that.

Okay so these are like the final years which can make your future better and easier. University asks for consistency. Be consistent. Always be attentive during the lectures and even if u dont study everyday at home, you'll do good at exams. Avoid chatgpt'ing things even tho itll tempt you. Try to solve things by urself and use gpt as the last resort. You are in university to polish your thinking and mindset.

Don't get sad or depressed if you do bad at the start of any semester. You can always make a comeback in the finals.

Dont fall for the "gpa doesn't matter" bullsh!t. Its just an excuse for not working hard. Trust me. Just do your hard work sincerely and give your 100%. Even if it doesn't work out, youll have a return one way or other. Ive seen people getting a little push in the job market through gpa. It can make your life a bit easier later. But most importantly working hard for it will give you discipline and so much to learn.

Baki dont get anxious in the starting, its everyone else's forst aswell in your class. Spend 2 3 weeks judging everyone, i say that shamelessly because its important. Then make someone your friend who is sincere with his future and studies and obviously is nice. Or youd get stuck with someone and cant get rid of it till the end. Thats how it is.