1. Focus your thoughts and actions.
Nothing is more important than setting an achievable goal and then focusing all your thoughts and actions on achieving that goal. Laser-like focus is by far the fastest path to making big improvements, especially when it comes to losing weight and getting fit.
Write down your goal statement/plan and read it twice daily. Something like: "I will lose 10 pounds of body fat in just 4 weeks by eating a healthy diet, cycling my carbs, doing short, intense workouts, and taking the right supplements." This works very well... so just do it!
2. Eat good calories and learn to cycle your starchy carbs.
95% of the calories you consume in a week should be "good" calories -- ones that will fuel your body, stimulate your metabolism, and help you shed excess weight. They will come mainly from lean proteins, good carbs, and healthy fats. Eat one "cheat" meal a week consisting of whatever you want in order to confuse your metabolism and keep it from adapting.
Also, learn to cycle starchy carbs in and out of your diet. This will also keep your metabolism off-balance and burning fat. Starches include grain products, potatoes, rice, and several other common high-calorie foods.
3. Do intense interval-based full-body workouts.
3-4 times a week do a short, intense workout that incorporates intervals of high intensity activity followed by periods of active recovery. They can incorporate both strength training (bodyweight training is the best option) as well as cardio (HIIT-style cardio is an ultra-effective fat burner).
That's it! The 3 steps you need to lose lots of body fat, tone your muscles, and look great fast!