WTHF is prognathism? Ohhhhhhh.... Like an underbite? I worked with a girl that had that problem. It wasn't no big deal.
Don't even sweat it breh. I knew a dude that legit had "Radio" teeth (you know what I'm talking about). He was really smart, but he had Radio teeth.
Anyway, from looking at you straight on, you can't tell. You should only be embarrassed if you have meth mouth. XD
My lower jaw is out of alignment - if I let it sit naturally, it "sags" to the right. When I had braces, my 2nd orthodontist made me wear this rubberband at night that looped around the brackets of my braces & pretty much wired my mouth shut so that my lower jaw would naturally re-align itself. My jaws & teeth would be extremely sore the next morning. I figured out what it was for and learned to hold my jaw in place when I went in to get my ish tightened up. No harm done.