How did you figure out 1936 to maintain your weight? If that number is right then yes you need to eat around 1400.

I don't eat to much processed bread but if I do I get whole wheat. It is really so much better than the bleached stuff.

If you are really trying to lose weight try to drink diet soda. 1/3 of your daily nutrition shouldn't come from soda or brownies.

Exercise isn't that big of an issue. It helps out and allows you to eat a bit more than 1400 calories.

If you are having trouble walking a consistent mile, I would consider that a warning sign. I would start walking more and try and push yourself to make it through a whole mile without stopping. If you stay persistent you will be able to do it.

On the chicken, different parts of the body will have different nutritional values.