Any alternatives to neck liposuction?

I had neck liposuction done 2 months ago, however no real results were seen. I am 29 years old, height of 5'10", and weigh 150lbs. An interesting finding I discovered is that when I press my tongue against my palate, my entire submental region lifts up dramatically and my double chin disappears completely. However, when not in that posture, it is very evident. Is there anything else that may be offered that can potentially change my jaw line or is my anatomy permanently preventing any real results? Thx!