2000 Volkswagen Golf Turn signals

For the last couple of weeks my cars turn signal fuse has been going bad a couple of times and than one day I was driving and turned on the signals, all of a sudden I hear a buzz and a pop. A little smoke came out of my air vents in the middle of my car. I checked my fuse it was still good. So what did I do. And what can I do to fix it cause I don't have money to take it in to a shop, and is there a temporary solution I could do that would give me turn signals, anything I could buy