Yes candida can do all this damage. Very much so. I too have most of your symptoms. No wonder your body is exhausted - its been processing toxins 24/7 for the last 7 years.
I think you were along the right lines with the liver flush. Have you considered doing more?
Start with the diet. You can give the antifungals a try. But I suspect that your body is too weak for either of these alone to cure you. I would concentrate on the cleansing first.
You need to get your liver functioning back to normal.