torn on what I should do..help

[foreversisters]

i am a freshman in college and just started my second semester. I am currently in a sorority as well. Last semester my grades were horrific and i can't believe I got the grades I did. needless to say I am very embarrassed and decided to dedicate this semester all on school. My sorority does take up a lot of time and I am nervous on what they will say about my grades. I do not want to quit by any means but is there anyway i can take a "break" from my sorority for a semester without quitting?

please give me some advice on what I should do.