New and kind of left out?

I am a freshman and just joined a sorority for spring recruitment about a month ago. I am usually so outgoing, but I'm shy in the sorority because I look at all the other girls in the house and they are already best friends, so I don't want to butt in on that. And the 10 other new girls who joined with me are so different from me, like really shy, and I can't picture myself being friends with them. The only 3 girls who joined with me that I DO picture myself being friends with because they are my age, are already super close from high school. What if I'm spending all this money and I never even get close to these girls?

Did anyone ever have this problem? What do you recommend?
thanks

Alone in Alphaaa.