congrats on the interview!
I interviewed last week, and unfortunately I pissed up the sim and didn't get the job. I passed the writtens and the tech prior to going to the sim. my fault, and I'll be kicking myself for a long time over it. It is the job I have always wanted. but, alas....
all the gouge is right on. know your plane VERY well, and don't mention anything you can't explain well (systems, weather, etc.)
scenario: you are the EMB CA, and a new FA is freaking about a door alignment mark not matching up, even though the door is closed-WWYD? she won't calm down, locks herself in the lav
scenario: your are the RJ CA, flight is full, and you depart the gate and end up waiting to de-ice forever, then wait again to depart, then have to redo the de-ice. 22 people are upset and want to get off the flight, want you to go back to the gate so they can make other plans-WWYD?
study hard, it's a long day with lots of waiting around.
I'll try again in 6 months, and I'm flying 121 now.
good luck
UP