ve found a compound called Serenity by Gaia to be good, also ignatia amara and gelsemnium
homeopathic remedies. Taurine is also helpful, as it makes GABA in combination with B6. But the whole package would include 5-HTP and some other stuff. A good book to read on this is Natural Highs by Hyla Cass, a psychiatrist at UCLA. And it goes without saying, therapy, a good diet, exercise, and meditation round it out. And remember, no guarantees, especially with severe anxiety.