Emotional eating and stress. They tend to go together and can be hard to overcome. Something that works for me is when I have a desire to eat when I'm not really hungry, I try to walk instead, or doing something around the house that needs to be done. Another thing I did was stop buying the stuff that I tended to reach for when I was struck by the urge to eat something I shouldn't. I no longer buy chips, or soda. It was hard the first couple months, but now it is easy for me to not eat those things. I do allow myself a soda once in a while, and chips occasionally, but I no longer have an issue with the cravings for them anymore.

Personally, I would avoid strict diets that don't allow you to eat certain things. They can be dangerous and can lead to cravings over time.

Hang in there.