Yes, I’ve eliminated caffeine and all refined sugars from my diet, and I’m on Prozac to address my anxiety. It’s helped a LOT with my fluency. Not 100% gone, but I’d say I’m 95% fluent now with occasional blocks here and there depending on how excited or upset I’m feeling at the time. I also drink a lot of calming teas as opposed to caffeinated drinks, which helps me remain calm all day, and sleep a LOT better too. I read aloud every day too, which I think is helping exercise my speech motor systems/muscles.