2. The yeast should be high sugar resistant, normal yeast will not rise because of the sugar.
3. Baking powder is slightly toxic and is not recommended, making your own bread at home is for health, isn't it.
Suggestions:
1. Use one cup of whole wheat flour, two cups of high gluten flour ratio to do.
2. If you are interested, it is recommended to use natural yeast that you make yourself, it is more riseable. The weather is just right now for natural yeast.