I would like to learn how to decrease my body fat percentage and facial fat and to have a diet to follow?

Calories: Start by keeping a daily calorie count for about one week. After you see what your average calorie intake is per day....Just cut out 500 calories per day and you will loose 1lb per week. If that is too hard, then try and walk about 20-30 minutes per day...That will burn about 250 calories and all you have to cut from your diet is about 250 calories to loose that same 1 lb/week.