Yeah, I know what you mean and I do tend to OCD on big games like this. Also I have so many games that I play I never seem to finish tha8t many. It's hard for me to sit and play the same game like day after day after weeks (in the case of Skyrim ). Also I tend to play the side quest first before I start the main story.
When I fart I laugh and when I laugh I fart. I can entertain myself for hours like this.