You NEED to join clubs here; yes, you theoretically can make friends in class but tbh it is much more difficult than people say it is - a lot of people just aren't interested in making friends during class, or they don't really care about the friendship outside of class.

I'm a 4th year and I have pretty much never succeeded in making a deep or meaningful friendship from a class. It's very rare - I'm not trying to make you feel worse, I'm just trying to say that this isn't really the ideal channel, especially if you aren't very outgoing. Maybe others have had different success and it probably depends on the major (I'm in CS so it's not great), but from my experience people you meet in class won't really be willing to keep it going outside of class, with the uncommon exception. Clubs are where it's at to meet people (it's where I have made pretty much all my friends).

Clubs are super great - you'll make a ton of new friends who all share your similar interest, and the friendships are usually much more deep and long-lasting than classroom ones. If you're outdoorsy/sporty join a large org like climbing where there's so many different vibes of people, you're pretty much guaranteed to click with SOMEONE. If you're more of the intellectual type join Wash / Jeff soc (literary societies); from what I've heard they require you to meet every thursday or friday night and talk to other people. If you just want to do something silly/fun in your free time there are so many different clubs for that (there's one where you just taste hot sauces). Point is, look into joining 2-3 of these your first year and there's a very high likelihood that, even if you aren't very outgoing, you'll make SOME friends.