I want to wish OP good luck! Yes, why not!
For most of my life, I believed I need to eat rice everyday. Rice is a staple for Asian for thousands of years. I must have rice. And breakfast is the most important meal. One should eat three meal a day and a good meal contains mostly carbohydrate/grain, some protein, and a little fat.
After a journey, the biggest change I have made is to my brain, my belief. I believe now that human has evolved and adopted to occasional starvation in the 200,000 years of human existence. Eating 3 meals a day is actually a recent development and among many development not necessarily good ones to our body. If your genetic makeup does not tolerate starving, then you would have become extinct by now. Counting calories in food intake and exercising hours, like a mathematical problem, is an oversimplification of our body system.
What works for me is to let go of the control. Accept that you do not have to eat a fixed number of meals a day, or at certain time, or certain amount or certain food. I feel I do not have to cook or make food all the time, and I am more relaxed. I enjoy food when they are available, if it is too much work to cook, I do not mind skipping meals. I eat less than half as much rice and grain as I used to. Just let it go. The biggest change is just to let go of the control.
To plant the seed to the idea, watch "The Science of Fasting" and read "Sapiens: A brief History of humankind".