I recommend the DCBA approach: Diet first, Cardio second, Building muscle third, and Abs exercises last. Follow it and you can safely lose one to two pounds a week. Spend 60 minutes a day preparing healthier meals. Spend 20 minutes a day three to five times weekly doing cardio. Spend 15 minutes a day three times a week strength training. Finally, spend 5 minutes a day three times a week doing abs exercises.