I'd like to offer a counterpoint to your views on medication. For those who suffer from acute, short-term anxiety over a specific event, for example an exam or an interview, beta blockers such as propranolol can be really helpful - as I understand it they interrupt the fight-or-flight adrenaline response to stop you working yourself into a panic. They were wonderful for me during exams and graduate interviews, and now I barely ever need them.
I still suffer from chronic anxiety, but that acute performance anxiety is not a problem for me anymore.