Can an 11mm sliding genioplasty be reversed to 3-4mm? What are the risks?

I would like to know if a 11mm advancement genioplasty could be reverse to 3-4 mm. I've had the procedure done about 3 month ago and I dont like the result. I feel my chin is still swollen but I hate the fact that now my upper lip look thinner and my chin longer et my face more masculine. Will the soft tissu go back to normal after reversal? What are the risk? And how many time you have perform this type of procedure, what was the outcome ? thank you