At least 80% of fat loss comes from the diet. Exercise is awesome, but it is a generally poor strategy to lose weight, the calories burned are so comparatively low, for most activities like running etc, you would need to run hard for an hour a day to lose 1 lb fat a week.
So, don't fret on the exercise. If you build in a moderate calorie deficit, avoid processed foods, eat adequate protein, you can get some stunning results with no exercise at all.
If you want some input on setting calorie / macronutrient ratios, just shout out and I'll help