Alica, I understand your fear. I went through this when my daughter was moving into Penn...another big city school.
I know how frightened you are. I have been there many times this year and am still strugling, but I am gutting things out better by staying in the present moment. Also, it helps me to say to myself, come on fear, give me all you got!
I think you can do this. I certainly wish you the best of luck, girlfriend.