Is there such thing as an 'Unlucky person'?

No, there is no such thing as luck, only coincidence. It's all in your head, if you believe that you are unlucky then you will focus your mind on all the negative events in your life, and will ignore the times that could be considered "lucky". Now quit dwelling on these "unlucky" happenings and start focusing more on the good things in your life, it will make you much happier.