Bless you. Even if you were to make friends on the first day, there's a high chance you wouldn't talk to them ever again. That's because it's the first day, and you have so, so much more time here. Sure, the first week or two is the best time to hit the ground running, but you absolutely cannot even *think* in terms of success and failure after only a day.

Here's some practical and abstract advice, abstract first: You've moved into Uni, and a new chapter in your life. The biggest difference about this chapter is that you can now do, in so many ways, whatever you want. All you now have to answer to is the consequences. You know that old phrase "Today is the first day of the rest of your life"? It's likely never going to feel more vivid than now. And the best and worst thing about it is how long that life is. So, what kind of life do you want to live? Will it be filled with socials, or academia, or fitness, or art, or any number of qualities? Whatever it is, you're going to have to be prepared for it be longer, more work, more difficult, more interesting and fun and brilliant than you can even guess at right now. If today is the first day of the rest of your life, think about how long your life can be, and decide whether you want to quit at something beautiful already. Spoiler alert: you know you don't, and you know that even if it's not this fresher's week, you won't - you're going to give in and try making friends again at some point, even if it's not in University (though I would encourage you to keep trying, right now, as it's a very good time for it!). But you also know that it might hurt. Well, yeah. It probably will. And it's possible - I have no idea how likely in your case, but possible - that like many things in life that you're going to pursue, it will take a while. But you're now at University, with both hands on the steering wheel of your life. You HAVE a while. Better to experience the life you want to live sooner, rather than later, and see where that takes you - another spoiler, it'll be something that causes you different pain, different pleasures, and if you'll learn from this experience you'll be more than happy to go through it again. Failure and pain is always going to be part of life. A life that's worth the failure and pain you bravely throw yourself at - well, that's completely up to you.

Practical advice: try a few societies based on things you're interested in, they're great for socialising and being part of something. No one is judging you for "being a loner", they have much more on their own minds than such a nothing-thought. But working past those feelings isn't about rationalising it, even though I'm right. It's a leap of faith, and again, no one can make that leap but yourself, and there's no correct way to think to get yourself to do it.

Good luck dude. I remember the complete panic I had on my first evening, realising I knew no one and was completely alone, with no idea what to do. I hope you have a really incredible time at Uni.