Suddenly don't know who I am; don't know what I want?

I was always completely ambitious, determined & pionate about my blossoming career. I'm a singer, and I recently auditioned for a competition in my state that is like American Idol. I made the first round of 30 finalists, and I was ecstatic. I have many things coming up, like a movie audition, and a record label contract that has yet to be signed once I complete my demo. Then, on Monday, I went to New York for a photoshoot. When it was done, I found myself quite upset & about to have an anxiety attack. I usually love the city, but I felt so smothered in it, and like I didn't belong. I was born in the country, and I suddenly felt a compulsion to be back there rather than where I was. I felt like I didn't want to sing anymore, or do this anymore. It was all very strange. I thought the feeling would p, but it hasn't. I feel like I don't know who I am right now, or what I want.