I can so relate to dealing with anxiety!
You know how it happened: Years ago I found a few drinks helped. Then my anxiety got stronger while alcohol seemed to get weaker. NEEDED MORE! and etc.. etc.
So good for your getting sober. I know the nerves are going crazy now and that just takes time... I too thought it would be instantly better.
Some tips... DOCTOR. vitamins, good diet, EXERCISE (You have no idea what a difference that made for me in as little as a few days), LESS coffee and more water, a rocking chair (I'm not kidding!), spend some of your sober money on a massage, deep breathing @ work or when driving.
An herbal tea may make a dent too. Some here post their liking of "sleepy time" tea I think its called?... Personally I have taken Kava Kava and it did help.
Welcome!