Don't know when I began to ask myself this question "what am I in a world", don't know why I sometimes have headache, and don't know why if I think of this question all my headache had gone away, think to solve a problem to some extent is a painful thing, while thinking itself is a joyful thing only when we realise the achievement we gained after thinking.
If you are unhappy, just think of this question, what am I in a world, in this big big world, there is no reason for us to adapt ourself to embrace a beautiful life with a sunny lightful heart. Wish you the best, do the things you liked, make all of your dreams come true, you know there is something wonderful waiting for you, don't easy to give up and say goodbye, last, don't forget to share your happy moment with your friends.