Did the lady happen to have a connection to black seed oil? Ah well, I do like the stuff and the "Prophet" Muhammed reportedly said that black seed was the cure for everything but death - though I am not sure that it would be beneficial for Depression or brain fog. Fatigue, perhaps.
I can surely relate to money being tight, but the Colloidal Gold , OxyActin and B12/Folic Acid combo don't total up to all that much and I think they are definitely worth trying.