Thanks for the advice everyone! And AOII, I actually talked to the woman in charge of Greek life on campus, so those numbers are accurate. At my school, about 50% of the girls who rushed ended up in a sorority. It certainly wasn't pre-set because a lot of the houses gave more bids than they were supposed to, but this year an extremely large number of girls rushed. Granted, maybe 5-10% of girls dropped.
I know life is about rejection and I have faced rejection, but it really affected me personally and I can't let anything affect my grades this semester.
That being said, I do want to give it one more try. I think I will go for it. Thanks for the advice everyone