I am so happy to read that you are making progress. I hope that my last entry provided you with some ideas. In terms of volunteer or philanthropic projects you can go a few ways. You can volunteer at a hospital, nursing home, senior citizen center, or a children's afterschool or foster home program. There are always groups like these looking for enthusiastic volunteers. Another possible project is an a-thon such as a jog a thon where you can involve as much of your group and campus as possible and raise money for a worthwhile charity. You can also get some publicity as you do something good. Brainstorm with the other members of your sorority. I'm sure that you will come up with some creative and unique ideas that will set the tone for your sorority and build the bonds of sisterhood.
Good Luck! (not that you need it) Happy Holidays!