Sorry I can't help you with the mercury detox process and zinc deficiency: I'm just starting to research that part myself.
Do you take a good magnesiumsupplement? I noticed you suffer from Depression and insomnia, conditions magnesium can be incredibly helpful with. Candida depletes magnesium. Mercury depletes magnesium and selenium.
According to magnesium researcher George Eby, Magnesium taurate is the best for a depression. According to Carolyn Dean from her book the magnesium miracle:
Magnesium is important in the serotonin story because it is a necessary element in the release and uptake of serotonin by brain cells. With proper amounts of magnesium, nature makes sufficient serotonin and you experience emotional balance. But when stress depletes magnesium, a vicious cycle spins out of control, and Depression can occur. The body needs magnesium in order to release and bind adequate amounts of serotonin in the brain for balanced mental functioning.
Magnesium is also a great mineral for eliminating insomnia.
Magnesium also regulates neurotransmitters and hormones in general.
DHEA needs magnesium for its production. Glutathione is also stimulated by magnesium. Don't forget the 300+ enzymes magnesium activates.
Carolyn Dean: To invidualize your magnesium dosage, the rule of thumb is 3.0 to 4.5 mg/lb of body weight per day.
Don't forget things that deplete magnesium such as calcium and coffee. Calcium is important but the proper balance between calcium and magnesium is essential for good health.