It’s best to use the greek yogurt because it contains probiotics and little sugar; there is about 8-11g of sugar per tub. Other yogurts contain something like 17-22g of sugar per serving (tiny tub). This is way too much, more than the daily threshold amount you should set for yourself. Keep the sugar intake to less than 25g a day.
You can take many supplements and it is not too much. I wouldn’t worry about it; it’ll help you get better faster.
Throw away the threelac, it contains yeast. This is not a helpful product. I wouldn’t take it during any stage.
I am a current candida sufferer and have spent hours on this website and listening to dr. mccoombs; this doesn’t make me an expert, but it doesn’t make me a noobie either.