Broken headphone jack on Samsung YP-T8?

Hi, I bought a Samsung YP-T8 about a year ago (I have no idea where my receipt is, so I can't think about warranty or anything) and the headphone jack is broken now (it had a fall out of my pocket one day, I think it may have been wrecked then, but it still worked fine for awhile afterwards...) it still works, kind of, but the headphone thing has to be sitting in the jack just right otherwise you don't hear anything, and it has to basically be held in place, otherwise it wiggles around and stuff. Is there any way I can fix this myself? Or do I have to find someone to fix it? How much would it cost?

Crystal
June 2007