You will never know EVERYTHING, even if you do become a CMC sometime.
Its a daily process of bettering your skills and your knowledge. Admit to yourself and to others that you don't know it all, but you're willing to work at it. Instead of wondering how much more your roommate knows, ask him/her to teach you a few things. Since you're both in culinary school, it shouldn't be too hard to strike up a conversation about food and related subjects.
I'll admit I entered school with the mindset of IM GONNA BE THE BEST, but I've humbled up a little bit since then (and I still have a little more to go). I strike up conversations with just about anyone on the train/bus. People see me in chef whites and have alot of questions. I see students/teachers in chef whites and I just approach them and ask how things are going with them. Reading is great, but imho talking and listening to the broad range of people in this industry is the way to go.
*shameless plug* Also, reading and posting on Cheftalk couldnt hurt your chances either  |