School Interview tomorrow

Apparently my net scores were high enough last week so they called me for the final step, the interview. This is the absolute last step in the long drawn out process of applying *I hope*. They did not tell me what I scored, but told me that if I did not do well, there would be no interview.

I will be so disappointed if I do not get in. I just hope its worth all the sleepless nights and stalking the mailbox. The lady that called said it would take about 1.5 hours, which seems long. For those of you who went thru this part of the process, how long were you actually interviewed and did you know when you left that you made it?