My lesson

So much lesson for me to learn in my life, one test follow by the other..
Why people never tend to get enough?Is there a contented term for everyone?
How do we define best?How do we define right?How do we define happiness?
I did what is suppose to be done and even more to make it better but in the end in another person's point of view, i did nothing but everything wrong..
I felt down not because of nothing in return but because people dont appreciate and caused themselves to struggling for happiness and for more which never come to an end.
Am sad that a special appreciation is difficult to practise..