Late reply, but please do not beat yourself up over it! Easier said than done, I know... I have an interview this week actually, hence why I am on here, and I am afraid that the same thing will happen to me. I am sure many people have been in your situation, so these managers would not single you out. When I think of my past interviews in college, I was mortified at how unprepared I was. I barely looked up questions, didn't research anything about the workplace, didn't look sharp... I took the bus to one in 90 degree weather (in Minnesota, what the devil!) and showed up sweating and stinking. When I discovered Allnurses.com, it was like I struck gold!