It looks like your thread may have gotten overlooked because it was moved.
I have dealt with disordered eating myself and know how it can take over one's whole life. So it is really important that in order to lose weight, you don't go the way of an eating disorder again. it is also very important not to go on a crash diet or any kind of strict diet. I think the best way is to find to a way of eating that you feel good with. Try to find out why you have gained the excess weight. Are you eating much more? Are you still bingeing, but not purging anymore? Are there special foods that trigger you?
For a while I had to make sure I didn't have any extra food at home. If I bought a whole bread I might just eat it. This after overcoming anorexia. I wasn't overweight but getting the feeling I had lost control over my eating. So I tried to just not buy more than I needed.
Now I am much better at it again and can buy a whole loaf of bread and eat it a little at a time.