First modeling interview! Help!?

On Thursday, I'll be having my first modeling interview :S The agency really didn't explain too much of what I'll be asked to do, but here is what I know. I will have to walk the catwalk a couple of times, read a script (for television modeling) and then answer a lot of questions after watching a video about the agency. I know what I'm going to wear (A plain white tee with either skinny jeans or jean shorts) but my problem is: Am I even model material?? I need people with experience in the industry. I'm 14. I weigh around 103 lbs. I'm 5'8". Blue eyes. Brown hair.....Straight teeth...I don't know what else I might need to put down, but I hope this is a start! I'm not second guessing any of this, I'm really excited!!!!! Just a little nervous....P.S. I you have any suggestions on how I should wear my hair...feel free to list them :) :) :) :) :) let me know what you think... Thanks! PPS I have long brown hair.