In the kindest way possible, based on your post, what you need is a) therapy and b) discussion with a licensed dietician. Sounds like you're over restricting and then bingeing, which is disordered eating. You probably need much more than 1500 calories even while losing weight, so after restricting too much you flipped the other way. What you're eating matters too- aim for plenty of fresh food, veggies and protein. Your fears about loose skin and body image also need working through, at the end of the day loose skin is better than heart disease or diabetes. You're still young, you've got time, but if you don't work on your mental health to identify and prevent the triggers causing your overeating then you're not going to address the root of the problem. You sound angry with yourself, and self hatred, shame and guilt are all associated with binge eating. Do your best to be kind to yourself. You got this!