Hi all. Not sure if I'm on the right sub but as far as I know it's a self-improvement sub right?

Anyway question is how do I develop social skills when you're not in high school / college anymore? I moved around as a kid every year due to parents' lifestyle. Even after becoming an adult I still kind of socially struggled because of my ugly buck teeth that made me socially anxious.

I'm not autistic, considering the fact that I did socially fine were when I was very little (early childhood until middle school) and when I was into body building and got big and confident in college. That means my lack of social skills is not a congenital disorder and rules out autism.