New and would love help!

Hey, I'm 18 and I'm probably a little bit different to the sort of people who typically join this site. I recovered from anorexia last year. At my lowest weight I had a BMI of 12.2 and I started to recover. I got to a healthy weight but found myself being unable to stop eating. I think my body/mind were just desperate for food and I could not stop. I'm very close to being overweight now and although some people might not think that's bad, I'm very distressed by this and it's seriously affecting my mental/emotional health and social life. I don't want to relapse back in to my anorexia and I don't think I will, but I think I can definitely afford to lose weight. I'd like to get to between 115 - 120 lbs. I'm 5'7