First, put away your Twilight movie DVDs, books, and posters. You need to go cold turkey on this one, absolutely no Robert Pattinson or Twilight themed things within your line of vision!
Next, you're going to rent the very non-sexy Robert Pattinson movie "Little Ashes", there you can see a not so sexy but far more realistic view of this actor in the buff. No CGI effects!
Feeling a little icky yet? No? Realize that your obsession with Robert Pattinson is based on the character of Edward Cullen, not the actor's actual hotness. Sure, he's not bad looking, but don't project your love of Edward Cullen from Twilight onto Robert Pattinson, they're not the same person. There is no real Edward Cullen!
Finally, Google "Robert Pattinson Fingernails" and click on "images". Icky! Hopefully these steps will help you get a more realistic perspective on your Robert Pattinson obsession and bring you back to reality, good luck!