I'm 20, my face is asymmetrical as fuck, on the left side I have a pretty good chiseled look, but on the right side my face is pretty much round, and my jaw seems also kinda recessed. I think this is because of my past habit of tilting my head and holding it with my left arm for support. Would a good posture and jaw exercises solve this issue on top of trying to chew on the right side, or are there any other tips you guys suggest?