Reduce energy intake. Eat less, but don't skip it. It seems unreliable to lose weight with fruit.

In order to increase the amount of exercise, there is a training method called HIIT. Find videos online and follow them. Girls can go to Duoyan Zheng or something.

Pay attention to hydration, preferably light salt water. Don't give yourself chocolate or anything after training.

Training must be done and persisted.