I started to stop consuming caffeine and fizzy drinks almost 4 weeks ago. First 2 weeks I experienced withdrawal symptoms and was hard to focus. But now I can tell you that I sleep better, earlier and I can focus better with more clarity. Keep doing it!
I'm keeping on it! Headaches are gone, but I'm still very tired. That's great that you made it through to the other side!
!PIZZA
Two weeks is all you need, then you will be good. I must admit, I am keeping up with sleep though, in order to not be too tired. 7-9 hours daily, no less.