 Please don't underestimate how important friendships are in university, they're just as important for your academics as they are for your personal life. When you step into a huge lecture hall with a thousand unfamiliar faces around you, it can get quite daunting if you're all alone. I came into uni knowing no more than a handful of people, so it was quite difficult to start with. But then I found one really great friend in the same faculty and we just proven to be the best study team ever. Also make lots of effort to get to know your other classmates because they can share so much knowledge and provide you with so much motivation. Please don't be shy and say hi to the stranger you sit next to on day one because everyone's in the same boat fighting the same currents and the journey is so so much easier with someone beside you.