Just moved in Mexico and I feel alienated.

My family just moved to Mexico two months ago because my dad got a job offer there. I was enrolled in a very prestigious university in Mexico and I got so much culture shock. Everything is really a foreign event for me. I feel so alienated because few of my classmates are scary to befriend with. There are still students who seem friendly but majority of them are quite unfriendly. I don’t even know how to approach them and it’s been a month since I got enrolled but I get acquainted to just a very few people. Any tips on how to befriend Mexican people?