Doing this for about 6 years now and my preparation has changed each year due to picking up different things that have worked for me. This year I have gone back to a routine I had when I started out when I was 18, I started to work out and run. I tried to run at least three days a week for about a mile to a mile and half.
Also I read up on the rule book go over the new changes for this upcoming year espcially the new college rule changes, since this is my first year doing college. Another thing I do to prepare is review tape and try to get together with some of my fellow officials and just talk about things that have occurred in the past along with just rule interpretation.
Another thing I do is make sure I start getting regular sleep, trust in the past it hurt and caught up with me.
Just some things I do to get prepared along with spending a lot of time with my girlfriend because she knows come November I have a busy schedule.
JB