When you get to college, go check out your counseling center (or their site online now?). Often schools have really good resources like this one from Western New England College:

http://www1.wnec.edu/artsandsciences...ction=doc.4639

If you're worried about just having breathing exercises; go check out anxiety books at the library or get a workbook from a bookstore and try out other methods to help, see if there's more that work for you?

Maybe try exercising throughout the day; exercise is very helpful for anxiety; take an exercise class and make some friends then you will be with them instead of surrounded by strangers :-) so that anxiety won't apply anymore.

http://www.cnn.com/HEALTH/library/MH/00043.html