When i was five years old , my mum always told me that happiness was the key to life. when i went to school, they asked me what i wanter to be when i grew up.i wrote happy they told me i didnt understand the assignment and i told them they didnt understand life :)

Realize that life is a school and you are here to learn, pass all your test. problems are simply part of the curicculum that appear and fade away like algebra class but the lesson you lean will last a life time.