E.M.Green's guide to dealing with obsession:

Step one:
Inundate your pysche with the thing you are currently obsessed about to test its stick-to-itiveness. If, after proper and abnoxious saturation of said content you still remain completely infatuated with the person, place, thing, feeling, or 80's toy in question go to step two.

Step two:
Check out the people who also dig said obsession. If you are not freaked out/disgusted by said people who dig said obsession go to step three.

Step three:
Tell other people about your obsession. Scream it from the rafters. Call for acceptance. Preach diversity in opinion. If you have not lost the entirety of your friends and/or family go to step four.

Step four:
Check if your obsession is interfering in your everyday life. Are you eating less? Are you getting thirty minutes of sleep each night? Are your eyes glazed over? Are you easily aggravated by people mentioning something even weakly related to your obsession in any form be it critical or not? Is your house difficult to navigate because of copious collecting? Are you not able to afford bills or other expenses because of your obsession? Are you forgoing doctor's visits for your obsession? Are you mutilating your body in any way that would be unhealthy for your obession? If you have not lost all touch with reality go to step five.

Step five:
Accept your obsession. There's nothing wrong with being obsessed or being a fan. If you have control of your obsession then embrace the joy and people that come with it. Write a blog about your obsession. List them. Love them. They are who makes you you. These are what make you unique and, yet, connected to people. Do not fear thoughts of your obsession interrupting your day. Simply acknowledge them and then go back to what you were doing.

And to celebrate step five I shall now list my obsessions with links (if applicable) in order of when they first come to my mind:

My Little Pony
Pullips
David Hewlett
Alan Cumming
Haikus
Independant Films (mostly with queer content)
Stargate Atlantis
Firefly

And there they are. They don't look like much now that I've typed them out but they are part of me. They make me who I am. I might have missed one, but being obsessed, one usually fails to miss.