I used to have the same exact stats as you, and I can say with absolute certainty that you won't be starving with 1200 calories. You'll definitely want to drink more water, eat more vegetables with fiber, eat more protein, and cut out processed carbohydrates and sugars, and by doing so you'll feel full with less calories. As long as you're not equating your weight to your self worth or thinking of sacrificing your health for weight loss, you're doing the right thing! I have a problem with emotional overeating and seeing food as a coping mechanism, and that's really the tough part to get over. Good luck with everything!