my fiance and i have finally set a wedding date- march 14 2004

so i was wondering, is it possible forme to get to my goal by then? thats a little over a year. i know everyone is different but on average what do you guys think, could i lose about 80 pounds by then??? i want to be realistic when looking for a dress and things, i dont want to wait until last minute to shop for that i will have enough stress, thats why im planning all this a year ahead of time....so everyone let me know what you think please