I can't stop gaining weight

I've gained such weight in the past year that I honestly hate myself. I'm so fat that I don't fit into anymore of my clothes, I don't feel sexy for my fiance anymore. This past year I've just felt so ugly between my weight gain, and my acne getting worse. I try so hard to stop eating so much but I can't. Idk how to stop it. I need help! Everyone says I'm not fat but I feel like I am. I went from being 160 to being 190 and all of the weight has gone to my stomach so it's fat. I just hate the way I look and feel but I can't stop eating 😢😢😢