I don't even know what to do...

I have my intake appointment tomorrow w/ my university counseling center, and I'm so anxious I feel like my head's exploding. I barely talk, so the thought of actually going through with this is huge. The counselor who did the phone interview already hinted that I would probably be referred out b/c the description of my anxiety/ocd symptoms seem like more than can be dealt with in the 12 session limit. I can't go anywhere else, though, since I can't afford to pay out of pocket, and using my insurance (still on my parents') would mean having them find out. I think I might call and cancel in the morning...