Look outside of yourself... can you think of something you might want to do that could give you a sense of pride in yourself???
You mention being Christian in another post, so, maybe you belong to a church that has a youth group that could use some extra hands??? If not, maybe you could start one???
Maybe you have a hobby that you could share with others and pass on your knowledge to younger generations???
Could you spare a few hours a week to go talk to people who wouldn't otherwise see another human being???