I really think it would benefit you to get on some medication.
Even if it is just anxiety medicine...preferbly a benzo....slows down the brain (mine anyway).

If you can't get to a Dr....I have resorted to Magnesium Citrate...and L-Theanine..over the counter they really do soothe anxiety..not as good as benzos...and subtle..but if nothing else....and you get desperate..try these.

I have tried MANY herbs that claim to curb anxiety..those 2 after about 200 dollars on supplements seem to work for me.