Progression

[BigFarns]

I'm in my first year as an official. I've made horrible calls and good ones but most of all I think I've found an outstanding way to be involved in the game I love. Really officiating a game is almost as fun as playing...but not quite cause I can't hit the QB..but I disgress.
Now comes the over presumptuous question. How do you move up in leagues? I know lots of time is involved and games for experience but I mean the logistics of moving up. Do you apply for Div III college conference? Do you just do High School and get "scouted" for the next level? How does it work?