I think its worth pointing out that this http://dsmivtr.org/
is the worldwide used Manual for diagnosing Anxiety disorders, depression etc. and it is... American. Not saying all Americans are fat and stupid but Pao-Lino has a point because Depression and anxiety disorders carry varying symptoms across individuals, and as such you need the program of treatment to be designed for that person - and that doesnt have to exclusively cover CBT, Drugs or anything, it can be a combination.
So before Sway starts telling us all to lick our limey fag asses, i hope you decide on the right balance for you.