Congratulations, you labelled the two-time use of lists as an "unhealthy obsession." 

In that case, I have a dire, fatal obsession with food, drink, computers, cups, trackpads, keyboards, headphones, speakers, music, CDs, Netflix, nerf guns, paintball guns, airsoft guns, real guns, LEGOs, Minecraft, other games, clothes, doors, vehicles like a pickup, vehicles like a lawnmower, showers, baths, toilets, and many more.