What are your problems? I've found talking about problems to be helpful whether just to vent, find a solution or both. As well, sometimes you need to do things to make yourself happy whether it's a piece of chocolate, some exercise, a good book, or a funny clip on youtube. With your unfinished business, I guess it's life telling you to hold on. For now, live for the hope that the next day will be better in some way than the last. These feelings will pass whether it's by themselves or with some help from yourself, others and perhaps things like medication or a change of scene. Even if you think you have nothing to live for, you have things to live for that you haven't realized that you're living for. Hang in there.