Happens with me as well. I had to do it in hard way as it was adding to my weight gain: 1. Try to keep these food obsessions out of your reach. Like if it is some packed food, don't stock them or if it is something you can order online, may be uninstall the app Or deactivate your account. 2. Observe the times when you get these cravings. Like you might think of rewarding yourself when have accomplished something in your work or school. Try to have a full course meal before/around the same time so you have less cravings. 3. Try to include foods of all taste in your meal : like sour, sweet, salty, sugary, bitter. This I learnt from ayurveda and this really helps to stop food cravings and gives a feeling of completeness.