I would like to be a CO as well, actually more than finding caches and puzzling myself, although I don't find it difficult. (I prefer to set up and maintain events for others than to attend it myself...).
Here in my area we have many interesting historical locations which could be great locations for caching, while no caches are there yet.
I just started with GC but that would be my major fun. I've watched dozens of youtube video's for ideas and tips.
How can I start doing this?