A lot of times the things that have caused the anxiety & the depression are the thing that was the initial cause for the anorexia.....many times (not always) the weight issue & the looking fat (body image) are a cover for what is really bothering people & really causing the anorexia to have started in the first place......that's why therapy is so very important.

I know for me, stress was always something that caused me to loose weight because I would feel so sick I didn't feel like eating & wasn't hungry.......then when a real trauma hit......wham.....full force anorexia.

It's definitely something you need to deal with including your depression & anxiety.......maybe it's your family who has let you down & not yourself for not helping you deal with your depression & anxiety in the first place.