Is it more difficult to make friends at uni than high school?

This french guy was telling me about how its quite difficult because you get more independent time than lecture time to actually get to know the person you're studying with....or somewhere along those lines....but isnt freshers week supposed to be for getting to know? I'm kinda nervous because its soo big and I'm gonna get lost. The library itself is 5 floor longs and it has full on lifts and what not shhh I hate my life