Just like these other members have said...
If OA is the right choice for you, then go again. Go again, and again, and again. Keep going to meetings, even if you can't yet find the ability to follow the rest of the program. Keep going, because at some point it WILL click. At some point you WILL find what works for you.
You really aren't alone. While I'm not an OA member, I do know the feelings associated with overeating and binge eating. Many 3FC members do.
You will find the way. You can work through this.
