Hi! what R your periods up to?  Is the anxiety worse in the mornings, is there a cynical pattern ........ 8 weeks is a bit long if anxiety is problematic.  
duloxetine - used for several different 'disorders' - perhaps a dedicated anti-anxiety medication would suit you, I used 'drug' name has gone  

.  Oh "valium" 5mg twice a day under supervision then as necessary: usually B4 an event that I was un able to get out of.  Never required a top up the next day.  Now I have a dedicated go to medication if panic attacks strike.
Propranolol worked for me too, prescribed in 2002 for many years oh I've said already [meno brain sorry]