My understanding is that each SSRI type med has a roughly 30% chance of working for you, though the odds are slightly connected for SSRIs that are similar.
If only the ADHD was as easy.
Also: "Escitalopram was well tolerated and only 7% patients withdrew, due to adverse events in the escitalopram group, versus 8% in the placebo group" -- people with anxiety disorders have panic attacks when they start lexapro at about the same rate as people who think they're on lexapro but aren't!
Also I do recommend trying any/all of the others things I mentioned as an adjunct, they've all got some decent science behind them, and defense in depth seems like a good idea to me.
This with caffeine is amazing!
*Its whats in green tea that gives the calming effect