The symptoms you are describing (being cold all the time, being thin, etc) are indicative of a person who needs to eat warming foods. Drinking detox tea is usually made of bitter herbs which are cooling to the body. Coconut oil is not going to warm you either.
Right now your body is spending a tremendous amount of energy trying to keep your baseline up, so my advice having been in your position is to eat warming foods and spices. My guess is that you will see relief when you begin to introduce more warming foods and spices and eliminate everything cold. Avocados, coconut oil, etc are all cooling and should be eliminated from the diet until the candida clears up.
I would also very highly recommend stopping vitamins and protein shakes. These place an incredible stress on your kidneys. Instead, eat raw sauerkraut without salt. It's very easy to make and will heal the candida in a remarkably short time.