Why are some people late-bloomers? What can somebody do such as myself to help this?

Anonymous
So long story short I'm a late bloomer, I turned 20 about a couple of months ago yet look 16, really irritating when most of the people I go to college with some even younger than me look much much older, I stick out like a sore thumb which is effecting me a hell lot more than it should, being 5ft 6 isn't helping either.

Anything I can do?
Why are some people late-bloomers? What can somebody do such as myself to help this?
2 Opinion