What exactly are you currently eating every day? How much do you exercise? and what times of the day are you doing either?
Or simply, burn more calories then you consume.
They have apps for that. Where you put in what you eat, and your exercise, and it tells you if you've burned more that you've eaten. There's a decent free one called Lose It, but I'm sure there are better paid ones.
P90X
IMO, Insanity is better for losing fat. P90X is for getting broly.