Many people experience the same worries when starting uni. Recently I have seen a lot of posts worrying about making friends or feeling lonely. When I started uni last September I very much felt this way, so here's what i've learnt.
When I arrived at university I was given so much information on all sorts of events (freshers week has so much more going on than just clubbing!) and this meant that immediately there was plenty of opportunities to meet people.
The best advice I received was to get involved with things you know you like, and this way you will meet people who you already have at least one thing in common with. This can be societies, events, sports - anything you like! BUT don't be scared to try something new, uni is a great opportunity for a fresh start.
Everyone is trying to make friends at university so be open to talking to anyone. Have the confidence to start chatting to people, everyone speaks to so many people during the first few weeks that if it's an awkward interaction chances are they won't remember. If you are more introverted (like me) don't panic! Many people will be happy to start conversations so just get involved and enjoy yourself.
Hope this helps calm some nerves!