Hello there and .......
Are you taking any medicine for the anxiety attacks? - I would look into that first, for they have greatly helped me (and) if you do not want to take a Rx then look into Valerian Root, a natural herb that I use on the side, in between my Rx medicine.... it works wonders in calming the nerves/anxiety when out and about.... and it helps with sleep.
What I found that helped me the most was to identify what exactly it was that scared me about people or being in public and then I worked on that issue first and for most.
LoVe,
Rhapsody - ((( hugs )))