What are things i can do to lose weight fast without having to exercise so much?

Cardio Mix: If you have adipose tissue that you'd like to lose then consider an increase in cardio and a balanced diet. However, do not always do the same exercise or you will increase your risks for stress injuries. Mix things up with running, biking, swimming, or circuit training. Ultimately you need to burn more than you consume.

Calorie reduction: Losing weight is not just about exercising but more about calorie restriction. Exercising does not produce weight loss without diet control, but may help increase metabolism which helps with weight loss. Control your diet and you'll see faster weight loss.