Corina -- I don't really have anything new to say, but YOU GO GIRL!!! Your letter is fantastic. It is wonderfully written and it conveys your enthusiasm beautifully. You would be an asset to any sorority!
I'm so glad to read your story because not only are you doing something great for yourself, you are doing something great for the other women at your school who want to join a sorority but for whatever reason are not in Gamma Phi Beta. YOU are awesome!!