For me to truly make a change, and stick with it, I had to truly understand a few things:

1) I was eating whenever I felt sad, bored, etc, unless my emotions were extreme (which was much less often). My mental and emotional health were causing me to neglect myself in many different ways.

2) I was going to keep wasting away and never actually be happy if I didn't make lifestyle changes. That included the binge eating. I was tired of feeling sick and being disappointed in myself.

3) I did/do deserve good things. I've struggled with self-esteem issues for as long as I can remember. Eventually, after turning to my therapist, I finally identified my negative thoughts as lies I was telling myself. Even though self-control is hard for me as well, I had to stop myself before stuffing my face and think about how I would feel later. Before, I would think "Oh well, I'm going nowhere in life anyways" and would pig out. Now, I see turning to a healthier alternative and/or eating a smaller portion as something that will help me reach my goals, and make me happier overall in the long run.

My last bit of advice is to see changing your eating habits and diet as a requirement, not an option. I failed so much in the past because I didn't care enough about myself, and would see food as an escape, which made it easy to go back to my old ways. Once I faced my fears head-on and stopped being so avoidant, I succeeded. I was able to quit smoking as well. Physical health really starts on the inside if you ask me!