I'm going to mention something no one else here has - the concept of your sorority as a whole entity, not just your own individual chapter. Sure, you want to fit in and feel that you need to fit into your own chapter now. As others have mentioned, this will most likely come with more time. Bonding with anyone does not happen overnight. It takes awhile to get to know anyone, sisters included. Shared experiences turn into recognition of each other as friends.
But consider your sorority as a large national/international organization. Think about why you chose it as one of your personal favorites, and give yourself a chance to feel included as one of its many members. This is why so many sorority members find the alumnae phase the most rewarding of all. You will not always get along with all of your pledge sisters, and you may find that things don't always go well once you initiate. But if you can find in your heart identification with your own sorority as special organization, then you will find a lifetime of rewarding membership.
