Yep...definitely sounds familiar!
I would suggest highlighting the activities that tell the most about you and your abilities. It sounds like you are doing very well at managing your time effectively, but you don't want to sound like a walking resume
In my experience, the people who have enormous lists like yours are also enormously enthusiastic, and the sororities will appreciate that. Just be sure that they understand that you can have the same enthusiasm for your sorority experience without burning out. Balance is so important!
LM