Jemma, I know exactly what you are going through. 1st things 1st: The clay and psylium powder or not recommended on this forum for health risks.
molybdenum can definitely help you. I havent used it myself but here it is very much recommended for coping with die-off.
You can always take probiotics. This is one of the most important things to take.
Tisdaleh, same for you. I know its hell but you have to hang in there. The candida is screaming for something to feed on, but you must resist. However, if the cleanse is too much for you, why not switch to stage 1 of the diet instead. Some body types just handle cleanses better than others. Die off symptoms should continue on stage 1.