Teeth Grinding On One Side? (photo)

I've always "grinded" my teeth ( I was told I did so as a child). I'm 29, have been buying guards (I chew through them, take them off sleep) since age 21. I asked my dentist as to why I only wear down right side, he replied " no one is symmetrical". Yes NO one is, but I am witnessing the right side getting more cracked, and flatter and flatter. Guards do nothing, they are a temporary fix. I think my teeth are becoming clear too because of this wear and tear. What can I do?