Objectivism

I wonder if Objectivism is all one needs to be happy. I somehow doubt that is the only thing. There are many pieces missing.

I have no doubt one can be happy as an Objectivist, but will one always be happy as an Objectivist. If not, what more is needed? What are the missing pieces? The real goal is, after all, happiness.

But I suppose just knowing what you need to be happy doesn't make it magically appear.