You need to do what you feel is best for you - you are trying to feel better, and small steps are an important part of that. Having your "trigger food" around all the time is definitely jumping to one of the last steps. Not buying these foods in a store, or using them as a reward comes as the early ones, having to stare at - in your case - ice cream every single day... it's not something you should have to do. If your mother won't listen to you, and you think that you would feel better at your father's, then I hope he would just be honored that you turned to him for help!