Unhappy with my smile and speech after genioplasty (jaw surgery) - can I have this fixed? (Photo)

Hello, I'm currently struggling with my Genioplasty. It's been 3 months and I still cant talk or smile properly and my lips are very small compared to what they used to be. I do believe there's something is wrong. The tightness has gone away. My smile (completely) and speech (partially) has been completely ruined. I want this fixed.