add some protein calories
IMO carbohydrates are addictive and harmful to anyone that is not a serious athlete.
The protein calories will not increase your hunger level and they will not store as fat.
For those that pay attention, nutrition is as controversial as the ecology.
Not knowing your size, I am not sure that your thousand calorie diet will be devastating to your health or shorten your life but you might wind up being a 98 lb weakling.