I get what you are saying and I've experienced this too. I think it's good to be around people that aren't like you. It shows you who you really are without your type of people. You gain a real sense of confidence because you learn to be you because of you. You know when you are around people like you, you know how to act and be. Everything is easy as it's kinda decided, with the culture and social norms. But when you arent around people who act like you, at the start you end up trying to fit in as much as you can but in the end you'll revert to being just you. Thats where you start understanding yourself and gaining a sense of who you truly are.
Yet I know how hard it can be when you stick out like a sore thumb, in a place thats so unfamiliar. You just feel very self-consious. the only way you'll get over it is when you get over it. And Everything is so destabilsied around you because nothing is familiar leaving you so off balance. I don't know if you are moving out, but add in all that experience and the newness of being on your own. It can be a bit much. Well alot.
So the question is are you ready for this experience? Do you feel you are strong enough to hold your own and be you. Even if you aren't ready, you can always learn. Don't take this decison lightly but at the same time you should be worrying more about if its a good uni to go to. Because what really matters is the type of education you recieve.