If you want your diet to be as successful as possible, you need to start focusing on only one thing at a time. If your goal is to ultimately lose weight and get in shape, it might be too much too fast to attempt to do both at once. Start with trying to burn the fat with diet and exercise, and then worry about toning those muscles.
To start burning calories first thing in the morning, replace your coffee with a cup of green tea. Green tea contains substances like polyphenols and katechines that work as natural fat burners. Unsweetened green tea is also free of calories. Studies have seen that people who drink green tea daily see better weight loss results.
Sometimes people need a nap during they day. When they fight that feeling, it is easy to mistake your tiredness for hunger and go straight to the junk food. If you are feeling a little tired, it is much better to take an hour out of your day and take a nap than to eat some junk food and fail at following your diet.