Just in case anybody looking for info stumbles upon this, I have some advice from experiencing my interview yesterday:
Definitely know what you want to do in whatever branch you're shooting for, know about careers in the other armed forces as well, have stories about times when you had to show leadership, and finally... know the commitment that you're making. I was asked how I felt about the possibility of being KIA. I responded by saying that I didn't want to be ignorant and say I was completely prepared for that possibility, but thenI was told that there were men and women my age dying for their country. I then responded that I was prepared for the risks that come with being in the armed forces. Essentially what I'm saying is speak from the heart, but really think about the risk and if you're willing to take that risk by being in the armed forces. There were other questions about leadership, such as what I thought about leading enlisted members and how to go about leading others in general. All in all it wasn't too bad, there were 4 interviewers along with the congressman Nunes' secretary and we all sat at a table. Remember to be polite, use sir and ma'am, have a respective smile on your face, and thank them and express your pleasure to meet them at the end of the interview. Last but not least, DON'T BE TOO NERVOUS, it's not that bad! Good luck

Oh and thanks to everyone on this thread for their advice, it was put to good use.