ABSOLUTELY!
Anxiety and panic attacks are actually very easy to treat. They are created and maintained by mistaken assumptions about the consequences of frightening (yet harmeless) physical and mental symptoms or anxiety.
Once you learn how to CORRECT those mistaken assumptions using the techniques in CBT4Panic the anxiety can never reach the same level of intensity again and eventually it doesn’t arise at all.
So whether you have had anxiety for 3 weeks, 3 years or even 30 years makes no difference.