Coincidentally, your method is similar to yours. The ratio of breakfast, lunch and dinner is 4:4: 1, and the dancer dances for 40 minutes every morning. After only three days, I have successfully lost 2.6kg.
Effective is definitely effective, pay attention to persistence. I estimate that if you stick to it for two months, your body shape will change obviously.
Besides, I'll make it up to you. Remember to drink a few mouthfuls of water before running. Be sure to stretch after running.
I wish you an early success in losing weight.