We must transfer this relationship with our idol (food, lusts, materialism, drugs, etc.) over to a relationship with God. You have to learn that every time your mind goes to your idol, you need to get it off and concentrate on higher callings...
You can reverse that old relationship with the all-day-long food lust to an all-day-long dependence on God—where you are listening to God, you are dressing for Him, and you are going to Him for your relationships and your finances...