Student going on to do their masters here!
I found it quite easy to make friends due to being put in groups and having a small class.
I would say that their is a high chance you will make friends in your own courses. You might even make friends in your flat!
I would not stress too much about it as you will make friends naturally from sitting next to people, class group chats and doing group work.
Also, don't stress if the people you go to freshers with don't end up being your best mates. I went to freshers with people on completely different courses and having really spoken to them much.
Wishing you all the best!
Anya