For a standard exclusion diet you have to cut out all the possible triggers completely (so in your case no wheat, gluten or yeast at all, not just less bread) for about a month...and 3 months is more reliable in the case of gluten. And then you add the triggers back in, one at a time, with a month between trying each new one.
Plus atm you're unstable so symptoms day to day aren't neccesarily a good indicator of what your triggers are.