Would chemabrasion work for my scars? (photos)

I have a 7 year old scar caused by using a Tria fractional laser device a few too many times and caused a massive tethered rolling scar across my chin. 6 Fraxel re:store and 1 co2 fraxel treatments later, it is still there. Fillers last me about 1 month. Tried them all. I recently read about chemabrasion (dermabrasion + medium tca peel) and wondered if this could help me. Perhaps subcision as well? The texture is rougher than the surrounding skin, but it isn’t noticeable when I smile.