Everyone has some obsessions. Some of us are ashamed of it, others go all the way. Some have big ones, some just little ones. This is where you can share them. You can just mention which ones you have (It could be an obsession about a celebrity, about a sport, whatever goes on and on and on and on and on in your mind), you can say what "cured" you from it, or just tell a story of what it made you do. "We are here for you".