>>82877685 (OP)
As a former fatty who lose 80lbs, it's very difficult at first. You must stop eating before you feel full. Eat about half of what you normally would and then stop immediately.
Drink ice cold water since it burns calories when your body warms it up to body temp. Get used to intermittent fasting. Eventually move on to 1-2 days of water fasting a week. Eventually your appetite will be significantly lower.
Also buy baby carrots and snack on those when you're hungry.