Congratulations on attaining that CGC. It is a great first step in making really nice teamwork. I would make sure you are familiar withthe rules for all levels of obedience (novice, open and utility) for a start. I have tons of books, but think videos are easier to see what the words mean. The great obedience trainers who have videos available include (not limited to): Petra Ford, Betsy Scappicchio, Linda Brennan and Denise Fenzi. The first thing I would teach is heads up attention for all work, not just heeling but also in between exercises. I have a YouTube channel with my own videos (
https://www.youtube.com/channel/UCvg0UyN051LpJ436IDB8KNQ) and I also have a blog thread here with a long running explanation of what I have been doing. It needs some updating, but we have had very limited working times this fall. Anyway you can find it here.
Javelin's road to ring ready!
There aren't too many of us who do obedience, so we are happy to have another person who is interested in pursuing formal obedience work.