Here is what you need to do.
- Attend as many camps as possible.
- Go to your local associations and listen to the presentations and speakers.
- Read (the other magazine I cannot mention) as much as possible.
- Buy as many publications on football officiating that you can get your hands on (from the other magazine I cannot mention).
- Find a mentor. Since you want to work college football, it would help if you can talk to someone that actually works college football.
I could mention other things, but these are usually solid things you can do right now and within the next year. You have already set a goal and that is always a good thing to do. You might take some of the goals and split them up into season, short-term and long-term. Getting to the college ranks is a long term goal, but you have to get some things done in the short term to get to that long term goal.
I also feel the advice that TXMike gave was also solid. Knowing how to call the game is going to take time. It also will take some experience by seeing snaps and by working different positions. I know it took me some time to develop a philosophy on calling the game and on certain rules.
Peace