The spit test is not an accurate test in terms of diagnosis:
It sounds like you are addicted to the foods that got you here in the first place, I was the same way as well but once you start to feel better, its totally worth it.
There is no time period for recovery, plan on 6-18 months to get over candida overgrowth if you have it.
We follow different stages on the forum:
stage 0: detox
stage 1: long term anti-candida diet
stage 2: when you are basically symptom free and can handle more carbs, sugar, etc.
stage 3: basically a healthy non-candida diet