The thing to remember is that things like this will take time. In any situation making friends is not a quick process. It takes time to foster and build relationships of any kind.
Now, I am studying for my own degree, but I am distance learning, so I don't have any insight to offer in terms of the 'in-person-making-friends aspect. However, I do know that it is hard to make friends in life in general. Like I say, is a process — and it may not happen in the way that we expect.
From what I have heard from many other people who go to a 'brick university', it is very hard to make friends in the first year, if at all. Often, the first few people — or groups of people — that you meet won't be the same people that you are friends with years down the line.
You mention that you're quite sociable, and an outgoing person — which is a very good start. I would suggest keep doing that. Keep attending different events that align with the things you are interested in.
Like reading? Go to a book club. Like football? Go to a football club, or regular meet up. Like writing? Check out writing clubs in the area.
By doing this, you will meet like-minded people, and hopefully that should help things. In general, I have found life's friendships can come out of nowhere and everywhere — and not always when, and where, we expect it. So, I suggest trying not to focus so much on the act of making friends, but rather the establishing of connections. Then I feel like it will become a more interesting experience for you, rather than something that feels like it has to be done.
Lastly, I hope that this post and my comments were useful. I do hope also that this wasn't too rambly.