I have done several exercises geared to acknowleding my emotional eating.
I think the biggest step is affirmation of your emotional eating habits, then ownership of your choices and no matter what avoid the overeaters anon that tells you to say crap like " I am helpless". You aren't helpless.
Another thing is to take a stress management class, and learn how to deal with stress BEFORE it becomes emotional, and then emotional eating.
Good luck Sweetie! It's hard - make sure you have a grip on it BEFORE surgery - WLS will not fix this - and you can find yourself dropped into the heart of stress eating with no notice (my Mom passed away unexpectedly a week post op and I had to fly from Houston TX to Appalachian Mts. VA to take care of everything.)
If talking will help you are so very welcome to message me. I am not an expert, I am just offering to lend an ear.