What can I do about the emptiness in my heart?

Lately my life has had little purpose. I've had an emptiness in my heart. I'm 14, and have many flaws. To say the least, I'm perfectly imperfect. I need to know, is there a way to help me deal with this? I don't come from a broken family, I don't have any close, dead relatives, I'm not rich, I'm not poor, I'm spoiled, etc. Am I just a selfish kid that is going to amount to nothing?