Overwhelming Fatigue on Candida Diet

Hey,
I was wondering if anyone on the Candida diet could help me...
I have been on the diet for 7 months and I am still struggling with many issues. I know that this diet takes alot of time and I have had excessive Candida overgrowth for 19 years (my whole life).
My main complaint at this point is that I keep getting sick (5 times including Mono since I began the diet) my immune system is so weak, but why is this so even after 7 months of pure candida friendly foods?
Also, my adrenal glands are failing. I am on adrenal supplements aswell as licorice root, and vitamin B's. Why is it that I can barely make it through a day due to excessive fatigue (including paleness)?
Any insight is much appreciated...
Thanks!