sorority resume

ok so i will be a sophomore when i go through recruitment and i heard resumes aren't required when registering but it's good to send one anyways.....since i am a freshman what kind of of stuff would i need to put on my resume?? I made one and it has my hobbies, high school and high school gpa, it will have my spring gpa, and the events I've gone to on campus. i also put a picture of my self on there. its only a page long because idk how long its supposed to be or what else i should put on it?? thanks!