HAPPINESS Vs SAD

Why we are not happy all the time ? have you ever thought of this?

we love happiness but not sad. but we face mostly sadness in over lives, that is not because of us it is because of our family or may be life partner or society .

if feel I am most unlucky person in world but they are many people who think like me every one thinks the same that they are unlucky . yes, we are unlucky life makes us feel like that we should face it and wait for our happiness

but many people cant do that now I am also unable to wait for my happiness

Any one of you facing the same plz comment me