Yours isn't the worst ever written. That's reserved for "My Immortal" by Tara Gilesbie. To this day there are groups devoted to this particular fanfic trying to decipher it and see if it's a magnificent trollfic or if the author was serious.

The TV Tropes page. All your information on this can be found there.

I would advise not clicking on this link to the story because therin lies madness but people tend to want to read bad things anyway so here you go.