Get angry because you are not generous enough.

Feel gloomy because you are not compassionate enough.

 Being anxiety because you are not calm enough.

Things make you sorrow easily because you are not brave enough.

 Melancholy covers you heart because you are not positive enough.

Jealous of others because you are not good enough.

so all those agonizing feelings were grew from your own heart,

 but each of the un-satisfaction of others is a good chance for you to discover your shortcomings