Taylor liberator with biofiller or fat transfer for my case? (Photos)

I think you would benefit greatly from taylor liberator subcision which is a fantastic way to improve deep bound down scars, but also nokor needle subcision to improve the scars that are mainly composed of dermal atrophy (the more superficial ~1mm or less in depth). I've found that nokor needle can almost erase the depressions from dermal atrophy, although it is very challenging to do for rolling scars because the skin is not evenly depressed. It works great however for scars with sharp edges and relatively even depressions like the box car ones you have. Combining subcision with filler either biostimulating or fat will probably give you a better result too.