1.Watch your calorie content.
2. eliminate
sugar,fat and preservatives from your diet.
3. drink a lot of water, this will fill your stomach and decrease your food cravings.
4. burn those calories , choose whatever physical activity you like aerobics, dancing etc.
5. use a good fitness app on your smartphone to keep track of your activities and calories.this will also keep you motivated to do more good work.
Good luck
Next Steps
Maintain this regimen.
Health Tips
Gradually increase your capacity to exercise.