making friends

I’m a first year at north campus, and i’ve been on campus maybe 3 times now? so maybe I haven’t given it enough time but it is so hard to make friends. I don’t know anyone from my high school, so I went into uni 100% alone. I’ve tried saying hi or talking to people in my lectures and tutorials but usually, they already have another friend and are totally uninterested in talking, which is fair because I guess we’re here to learn, but I dunno, lots of people I’ve run into are simply not interested in talking and closed off.. I’m going to campus tomorrow so I hope It’s different