the modern approach is that panic attacks arent stopped by any type of psychotherapy but are mostly inherited, family members probably suffererd but this was often hidden as they were thought of as a mental illness
a large dose of any valium type meds will allow you to cope with holidays but this dose needs careful adjustment
most sufferers now get better using a combination of meds and CBT
self help books are better than therapists, IMO as many therapists dont know much or anything about modern treatment, indeed some dismiss the panic attacks as unimportant