diet and nutritian

I have been post op now for over 5 years now and hadn't gained a pound until a few months ago.  i was in an abusive marriage and started to eat late at night.  i quickly gained almost fourty lbs overnight.  I am devastated.  does anyone have any advice on how to shrink my pouch again? 

signed desparate

 Nutrition food is the best way to lose weight but i have no idea which one nutrition food is good for my health . so my cousin told me about  12 week  nutrition food  that came  back smile on my face and  lose my weight 200lbs  in a week . I feel that is best way to lose weight . Because after me that give 2 more good result .