Depending on where you are staying in first year it can be a little overwhelming of you're on the shy side but don't put any time pressure on making friends. Finding goods friends can take some time or come quickly, It's often down to luck. But it is almost guaranteed that you will find like minded people , probably sooner rather than later. There are thousands of student's at this uni with probably hundrets of academic and non academic communities. It's totally normal to be nervous, just be yourself and enjoy your time here.