I have serious problems with food/eating?

My mom has said to me every single day since I was little: "don't let yourself go." meaning, dont gain weight. Her and my dad have struggled with their weight my whole life. I've gotten to a point where I can't eat with people watching me because I'm horrified that they are judging me (for example, I can't eat in food courts without having serious anxiety). I don't starve myself, but I always feel guilty after eating and I can't help but judge people when I see them eating. I still eat of course but I have a lot of psychological problems surrounding food and eating. I really don't know what to do about it?
I have serious problems with food/eating?
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