Don’t be discouraged because the oral thrush will come and go as you heal. You won’t even come close to killing off all of the candida with the cleanse and it takes a very long time to heal. Plan on a 6-18 month recovery period to get over candida overgrowth.
Whenever you are ready to start the diet, go for it! The cleanse isn’t meant to last a long time.
I second what clare said and don’t do the exercise. You need your energy to heal and it can set you back. Plan on starting to do that regularly again in a month or two when you get your legs underneath you more.