I have a solution.
Just indulge in stuff like Vosges and you'll never want to put a piece of Herseys in your mouth again.. but yet you'll be too poor to afford the $8 each Vosges Barcelona Bar which is my total addiction. I also recommend the Goji Bar.
... and when you can afford it, you'll treat it like liquid gold, so you won't eat as much. ;)
http://www.vosgeschocolate.com/