[33girl]

Even if we could answer this question, it wouldn't tell the whole story.

There are schools where every PNM who maximizes her options and gets to pref is guaranteed a bid, but some of them don't accept the bids or drop out shortly after. So you can't count them as "success" stories.

And as far as why ANYONE doesn't receive a bid, including age, that's confidential membership selection stuff and not really appropriate to discuss on here.

As for your particular situation, get recs for ALL the sororities, keep an open mind and don't psych yourself out.