Chin Reduction in 2010, Left Side if Longer and Uneven? (photo)

I had a chin reduction in 2010. I'm not quite happy with the outcome, because my left side is longer and more uneven. Also, i feel two ridges and loose skin, because it has been done through a wedge section inside the mouth. My question is, can you burr these ridges down through a submental incision, tighten the skin with local anesthesia? I don't mind a scar and my anxiety level is quite high. But these ridges bother me incredibly, i could cry..

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