Things were fine and life was good

I had this dream,
Things were fine and life was good,
But then I woke up and I just felt so empty,
Like if nothing will ever be okay,
And I could never be happy.
I'm trying so hard to see the good things in life,
It's hard sometimes,
When you have nothing to believe,
And no one to say that everything will be okay.
I don't understand the purpose of living life trying to be happy all by yourself.
I don't even understand me and whatever is going in my mind.
I'm really making an effort to think positive,
But I just don't know how much my broken little heart and soul can take.