Hi,
Going to uni can be a very scary time, I know a lot of people who felt similar when they started. It is the most independence most people have ever had and as such they can feel quite overwhelmed. All I can say is that almost everyone who goes to uni is worried about the same things you are, that they won't make friends, that they won't fit in, that people will laugh at them.
Small uni's can be beneficial when it comes to making friends. They aren't as overwhelming as larger uni's and due to the smaller class sizes you end up mingling with people more. I would also recommend utilising your universities support services and contacting them as soon as possible. They will have some kind of student wellbeing team that can help you settle in and offer you support, counselling etc...
The uni will also probably put on lots of optional social events to help you meet people, but you don't have to go so hopefully you won't feel pressured to attend.
Try to remember that uni isn't final, if you aren't enjoying it, you don't have to do it but you might find that you love it!
Feel free to ask if you have any questions,
Mike