You will need to start practicing mental control over yourself. You do not want to tell yourself that you are on a diet, you will want to tell yourself that you are chosing not to eat junk food right now.2
Drinking green tea will help you feel full. You can use it as part of your water intake but not the entire amount. I recommend drinking
a minimum of 5 cups of green tea per day. Remember to drink the equivalent of 8 glasses of water per day or the amount recommended by your doctor.
Set yourself up for a successful weight loss by making healthy, nutritional foods easily available. Buy fruit and vegetables in convenient, easy to eat packages, such as apples, blueberries, bananas, baby carrots, etc. Also remember to have plenty on hand so that you can easily eat 5+ servings per day. Eat your veggies at the beginning of each meal so that you feel full sooner. Eat steel cut oats in the morning to give you a fuller feeling all day long.
Make exercise enjoyable everyday even if you need to start with just 1 minute per day. Start by walking 5-10 minutes per day. Gradually increase the amount you walk each week until you are walking 45-60 minutes per day. Next add weight lifting slowly and researching it properly with your doctor before you begin. Even if you start out with 1 lb. weights, it will make a difference and you can slowly increase the weight amount.